多选题Triangle PQR is isosceles and ∠PQR measures 50°. Which of the following could be the measure of ∠PRQ? (Indicate all of the answer choices that apply.)A60°B65°C80°D100°E130°
多选题
Triangle PQR is isosceles and ∠PQR measures 50°. Which of the following could be the measure of ∠PRQ? (Indicate all of the answer choices that apply.)
A
60°
B
65°
C
80°
D
100°
E
130°
参考解析
解析：
因为⊿PQR为等腰三角形，所以当∠PQR为顶角时，∠PRQ=65°；当∠PQR为底角时，∠PRQ=80°，故本题选择BC。
因为⊿PQR为等腰三角形，所以当∠PQR为顶角时，∠PRQ=65°；当∠PQR为底角时，∠PRQ=80°，故本题选择BC。
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