검정교복의마지막세대 | 원뿔 만드는 방법 - Daum 카페

<TABLE cellPadding=0 bgColor=#d6fedf border=0> <TBODY> <TR> <TD width=748 height=22> <P><B>원뿔의 전개도와 겉넓이를 구하여 보자.</B></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=740> <P><B> <IMG height=13 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fball01d.gif" width=13 border=0> </B>다음 원뿔의 전개도를 알아보자.</P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=730> <P>  <IMG height=280 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605a.GIF" width=715 border=0></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=730 height=40> <P>원뿔의 옆면과 밑면인 원을 잘라서 펼치면 위의 오른쪽과 같은 전개도를 얻을 수 있다.위의 원뿔의 전개도에서 옆면인 부채꼴의 호ㄴㄷ의 길이는 밑면의 둘레와 같다.</P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=246> <P>  <IMG height=267 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605b.GIF" width=304 border=0></P></TD> <TD width=468> <P>온쪽 그림은 원에서 부채꼴의 중심각의 크기를 2배,3배,4배로 늘인 것이다.이에 따라 호의 길이와 부채꼴의 넓이는 각각 어떻게 변하는지 알아보면 한 원에서 부채꼴의 호의 길이와 넓이는 증심각의 크기에 비례한다.</P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=732> <P><B> <IMG height=13 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fball01d.gif" width=13 border=0> 원</B>뿔의 전개도에서 부채꼴의 중심각의 크기를 알아보자.</P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=350> <P align=center> <IMG height=122 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605c.GIF" width=86 border=0></P></TD> <TD width=73> <P align=center> <IMG height=26 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Far1.gif" width=29 border=0></P></TD> <TD width=298> <P align=center> <IMG height=206 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605d.GIF" width=280 border=0></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=722> <P> <IMG height=275 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs06051.gif" width=569 border=0></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=710> <P> <IMG height=13 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fball01d.gif" width=13 border=0> 다음 부채꼴의 중심각의 크기를 구하여 보자.</P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=347 height=75> <P align=center>  <IMG height=232 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605e.GIF" width=203 border=0></P></TD> <TD width=347 height=75> <P align=center>  <IMG height=211 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605f.GIF" width=316 border=0></P></TD></TR> <TR> <TD width=347> <xFORM name=myform1 method=get> <UL> <DL> <DT><FONT face=굴림 size=3>중심각의 크기=<INPUT size=5 name=txtnum01>。 <xSCRIPT language=VBScript‎>  </xSCRIPT> <INPUT type=button value=정답확인 name=cmddap1></FONT><FONT face="Times New Roman" size=3> </FONT></DT></DL></UL></xFORM> <DL> <DT><FONT size=3></FONT> </DT></DL></TD> <TD width=347> <xFORM name=myform2 method=get> <UL> <DL> <DT><FONT face=굴림 size=3>중심각의 크기= <INPUT size=5 name=txtnum02>。 <xSCRIPT language=VBScript‎>  </xSCRIPT> <INPUT type=button value=정답확인 name=cmddap2></FONT><FONT face="Times New Roman" size=3> </FONT></DT></DL></UL></xFORM> <DL> <DT><FONT size=3></FONT> </DT></DL></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=703> <P><B> <IMG height=13 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fball01d.gif" width=13 border=0> </B>다음 원뿔에서 밑면의 반지름의 크기를 구하여 보자</P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=254> <P align=center> <IMG height=201 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605g.GIF" width=142 border=0></P></TD> <TD width=92> <P align=center> <IMG height=26 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Far1.gif" width=29 border=0></P></TD> <TD width=335> <P align=center> <IMG height=229 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605h.GIF" width=219 border=0></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 bgColor=#e5f5ff border=0> <TBODY> <TR> <TD width=750> <UL> <P>밑면의 반지름을 χ㎝라고 하면 <BR>360:90=(16×2×3.14):(χ×2×3.14)<BR>360×(χ×2×3.14)=90×(16×2×3.14) </P></UL></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 bgColor=#e5f5ff border=0> <TBODY> <TR> <TD width=748 height=48> <UL> <P> <IMG height=47 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605b1.gif" width=298 border=0> </P></UL></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=706> <P><B> <IMG height=13 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fball01d.gif" width=13 border=0> </B>다음 원뿔에서 밑면의 반지름의 길이를 구하여 보자.</P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=345 height=71> <P align=center>  <IMG height=208 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605i.GIF" width=142 border=0></P></TD> <TD width=22 height=71> <P align=center>  <IMG height=233 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605j.GIF" width=247 border=0></P></TD></TR> <TR> <TD width=345> <xFORM name=myform3 method=get> <UL> <DL> <DT><FONT face=굴림 size=3>반지름의 길이= <INPUT size=5 name=txtnum03> ㎝ <xSCRIPT language=VBScript‎>  </xSCRIPT> <INPUT type=button value=정답확인 name=cmddap3></FONT><FONT face="Times New Roman" size=3> </FONT></DT></DL></UL></xFORM> <DL> <DT><FONT face=굴림 size=3> </FONT><FONT size=3> </FONT></DT></DL></TD> <TD width=344> <xFORM name=myform4 method=get> <UL> <DL> <DT><FONT face=굴림 size=3>반지름의 길이= <INPUT size=5 name=txtnum04> ㎝ <xSCRIPT language=VBScript‎>  </xSCRIPT> <INPUT type=button value=정답확인 name=cmddap4></FONT><FONT face="Times New Roman" size=3> </FONT></DT></DL></UL></xFORM> <DL> <DT><FONT face=굴림 size=3> </FONT><FONT size=3> </FONT></DT></DL></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=697> <P><B> <IMG height=13 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fball01d.gif" width=13 border=0> </B>다음 원뿔의 겉넓이를 알아보자.</P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=275> <P align=center> <IMG height=161 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605k.GIF" width=141 border=0></P></TD> <TD width=65> <P align=center> <IMG height=26 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Far1.gif" width=29 border=0></P></TD> <TD width=335> <P align=center> <IMG height=194 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0605l.GIF" width=207 border=0></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=677> <P>밑면은 반지름이 3㎝인 원이므로, 밑넓이는 <BR>3×3×3.14=28.26(㎠)<BR>옆면은 반지름이 9㎝이고, 중심각의 크기가 </P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=218> <P> <IMG height=48 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0606a.gif" width=222 border=0></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=691> <P>인 부채꼴이므로 옆넓이는 </P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=223> <P> <IMG height=53 src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.topianet.co.kr%2Ftopia%2F6%2F6s%2Fimages%2Fs0606b.gif" width=214 border=0></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 border=0> <TBODY> <TR> <TD width=679> <P>그러므로 겉넓이는 28.26+84.78=1<FONT color=red><B>13.04(㎠)</B></FONT></P></TD></TR></TBODY></TABLE> <TABLE cellPadding=0 bgColor=#e5f5ff border=0> <TBODY> <TR> <TD width=727 height=54> <UL> <P><B>(원뿔의 겉넓이)=(밑넓이)+(옆넓이) = (원의 넓이)+(부채꼴의 넓이)</B> </P></UL></TD></TR></TBODY></TABLE>

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∥………◈자유게시판◈ 원뿔 만드는 방법

쥔/미운오리 추천 0 조회 379 05.09.27 00:02 댓글 4

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운/임정혜(귀염돼지)
05.09.27 09:13

첫댓글 우앙~~...난 쥐가 날정도가 아녀~~..ㅠㅠ....이거 초6 수준마져?.....어제밤 끈질기게 붙들고 있더니..아침에 머 하나 맹그러져 있드만..정상적으로 댓나 몰르그따~~......오랴~.......넘 고마와..근디 디지게 어렵다잉?..이따가 머리쫌 맞대보자야~~
쥔/미운오리
작성자 05.09.27 20:14

나랑 맞대서 머더게야??너거 핸섬보이님이랑 맞대고햐~~ 내대굴빡 쥐난닥허니께??
운/임정혜(귀염돼지)
05.09.27 22:55

흐미~...머리맞댈 시간두 읍썻다야~....ㅠㅠ...낼 맞대보자~..ㅋㅋㅋ
쥔/미운오리
작성자 05.09.28 01:13

너는 내가 글케 조으냐??? 흐미 부담시럽따,,,,켁

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