https://www.happycampus.co.jp/public/tags/%E8%A7%92%E5%BA%A6/ タグ“角度”の公開資料 ja-JP happycampus rss generator https://www.happycampus.co.jp cs@happycampus.co.jp cs@happycampus.co.jp Copyrightⓒ 2002-2026 AgentSoft Co., Ltd. All rights reserved Sat, 30 Jul 2005 18:06:19 +0900

A rectangle OABC rotates counter clockwise about the point O as shown in the diagram below, which is not drawn to scale [120]
1. Rotating Rectangles A rectangle OABC rotates counter clockwise about the point O as shown in the diagram below, which is not drawn to scale Initially O is at (0,0), A is at (4,0), B is at (4,3), C is at (0,4). The diagram shows the rectangle after it has rotated through 20 degrees. The vertices are now labeled O, A1, B1 and C1. 1. Calculate the coordinates of A1 and C1. l A l = l A1 l thus… We can make next triangle. Now, we can use a sine rule. O D becomes the A1's x-coordinate and A1D becom..]]>