[計量] 一題PP請教
╱y ╲ ╱y ╲
╱ ╲ ╱ ╲
╱x z ╲ ╱ ╲
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ╱x z ╲
s  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
S
(對不起 圖畫的不太好 x y z 代表角度 s 與S表底的長度)
in the figures above, if the area of the triangle on the right is twice the
area of the triangle on the left, then in term of s, S=?
(a) √2/2 s
(b)√3/2 s
(c)√2 s
(d) √3 s
(e) 2 s
ANS: C
請問一下該怎麼計算
謝謝指教!!^^
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.112.4.234
推
01/20 15:26, , 1F
01/20 15:26, 1F
→
01/22 10:41, , 2F
01/22 10:41, 2F