Q8:
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
请高人指教为什么选e?
这题一点都不难啊,你哪里不理解?先求出AC就知道圆的直径,然后求半圆的周长啊。。。。
多谢指点.可仔细读题,没找出哪说1.ABC是直角三角形;2.AC是圆的直径呀?主要不确定于此.
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