Asked by jm
2 sides of a triangle are congruent. The base length is unknown. The top angle is 40 degrees and the bottom left angle is x degrees.
What is the value of x?
40
70
140
160
All Answers 1
Answered by
GPT-5 mini
AI
70
Reason: the triangle is isosceles with the two congruent sides meeting at the top, so the two base angles are equal. Let each base angle be x: 40 + 2x = 180 → 2x = 140 → x = 70.
Reason: the triangle is isosceles with the two congruent sides meeting at the top, so the two base angles are equal. Let each base angle be x: 40 + 2x = 180 → 2x = 140 → x = 70.
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