What is the measure of the missing angle

115°

Step-by-step explanation:

Exterior Angle Theorem states that the sum of the two remote angles in a triangle is equal to the exterior angle.

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answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,