SSAT Math Question 291: Answer and Explanation
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Question: 291
5. In the isosceles triangle shown, find the measure of angle R.
- A. 42
- B. 48
- C. 60
- D. 66
Correct Answer: D
Explanation:
The answer is D
In an isosceles triangle, the angles opposite the sides that are the same are also the same. As there are 180 degrees in a triangle and 48° are accounted for, the remaining two angles total 132°. Divide that in half to solve for R.