Math Problem Statement

If VY = XY = 75 and m∠VWY = 36°, what is m∠XWY?

Solution

The image shows a geometry problem where you are asked to find the measure of angle XWY\angle XWY, given that VY=XY=75VY = XY = 75 and mVWY=36m\angle VWY = 36^\circ. The diagram indicates a triangle, with one right angle at WXY\angle WXY.

Solution:

We can solve the problem using the following steps:

  1. Since VY=XY=75VY = XY = 75, triangle VXYVXY is isosceles.
  2. In an isosceles triangle, the angles opposite the equal sides are equal. So, VXY=XYV\angle VXY = \angle XYV.
  3. The sum of the angles in triangle VWYVWY must be 180180^\circ. We are given mVWY=36m\angle VWY = 36^\circ, and we know that WXY=90\angle WXY = 90^\circ (since a right angle is marked at XX).

Let’s calculate mXWYm\angle XWY:

  • In triangle VWYVWY, the sum of the interior angles is: mVWY+mXWY+mWXY=180m\angle VWY + m\angle XWY + m\angle WXY = 180^\circ Substituting the known values: 36+mXWY+90=18036^\circ + m\angle XWY + 90^\circ = 180^\circ Simplifying: mXWY+126=180m\angle XWY + 126^\circ = 180^\circ mXWY=180126=54m\angle XWY = 180^\circ - 126^\circ = 54^\circ

Therefore, the measure of XWY\angle XWY is 54\boxed{54^\circ}.

Would you like more details on any part of the solution? Here are some related questions you might explore:

  1. What are the properties of an isosceles triangle?
  2. How do you calculate the angles in a triangle?
  3. Why do the angles in any triangle always sum to 180180^\circ?
  4. How does knowing a right angle helps simplify the problem?
  5. What would change if the side lengths were different?

Tip: In geometry, identifying congruent angles and right angles often simplifies complex problems.

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Math Problem Analysis

Mathematical Concepts

Geometry
Triangle Properties
Angle Sum of a Triangle
Isosceles Triangle

Formulas

Sum of interior angles of a triangle = 180°

Theorems

Isosceles Triangle Theorem
Triangle Angle Sum Theorem

Suitable Grade Level

Grades 8-10