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Find the Values of X and Y

Find the Values of X and Y-example-1

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The value of x and y in the Isosceles triangles are 26° and 45° respectively.

The base angles of an Isosceles triangle are equal in measure, and the sum of interior angles is equal to 180°.

Considering the Isosceles right triangle, we can get the value of y as follows:

90° + 2y = 180°

2y = 180° - 90° {collect like terms}

2y = 90°

y = 90°/2 {divide through by 2}

y = 45°

Considering the biggee Isosceles triangle, one of its base angles is (x + y) thus we have that:

38° + 2(x + y) = 180°

38° + 2(x + 45°) = 180°

38° + 2x + 90° = 180°

2x + 128° = 180°

2x = 180° - 128°

2x = 52°

x = 52°/2

x = 26°.

Therefore, the measure of x and y are derived to be 26° and 45° respectively.

User Tomas Creemers
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