GWD MATHE 3--8 求救

anonym1106

B

A C

In the figure shown, the triangle is inscribed in the semicircle. If the length of line segment AB is 8 and the length of line segment BC is 6, what is the length of arc ABC?

A. 15p

B. 12p

C. 10p

D. 7p

E. 5p

GreenHorse

半圆形，所以角ABC是直角。勾股定理求出AC=10,即直径。弧长ABC=P*5(半径）

songyeonpp

QUOTE:

以下是引用GreenHorse在2007-10-20 6:42:00的发言：
半圆形，所以角ABC是直角。勾股定理求出AC=10,即直径。弧长ABC=P*5(半径）

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