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In an isosceles triangle, the ratio of the measure of the base angle to that of the vertex angle is 2: 1, what is the measure of the vertex angle? (A) 18 (B) 24 (C) 36 (D) 48 (5…

In an isosceles triangle, the ratio of the measure of the base angle to that of the vertex angle is 2: 1, what is the measure of the vertex angle? (A) 18 (B) 24 (C) 36 (D) 48 (5…
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1 vote
In an isosceles triangle, the ratio of the measure of the base angle to that of the vertex angle is 2: 1, what is the measure of the vertex angle?

(A) 18 (B) 24 (C) 36 (D) 48 (5) 72

asked
User Gnosio
by
7.9k points

1 Answer

4 votes

Answer:

2x + 2x + x = 180

5x = 180

x = 36°

The correct answer is C.

answered
User Chris Arriola
by
8.1k points
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