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never [62]
2 years ago
8

Find the measures of the angles of an isosceles triangle where the ratio of the vertex angle to one of the base angles is 1:2.

Mathematics
1 answer:
leonid [27]2 years ago
7 0

Answer:

Angles of the isosceles triangle are 36°, 72° , 72°

Step-by-step explanation:

Vertex angle : Base angle = 1 : 2

Vertex angle = x

Base angle = 2x

Sum of all angles of a triangle = 180°

          x + 2x + 2x = 180°

                      5x = 180

                        x = 180 ÷ 5

                        x = 36°

2x = 2 *36 = 72°

Angles of the isosceles triangle are 36°, 72° , 72°

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