Math Problem Statement

Find the value of x in a triangle with a known angle of 32° and two equal angles.

Solution

The diagram shows a triangle with an angle of 3232^\circ and two angles marked as equal by the tick marks. This indicates that the triangle is isosceles, where two sides are of equal length and, therefore, their opposite angles are equal.

To solve for xx:

  1. Sum of angles in a triangle: The sum of the internal angles of any triangle is always 180180^\circ.

  2. Let the two equal angles be xx^\circ: Since it's an isosceles triangle, the two base angles are equal.

  3. Set up the equation: x+x+32=180x + x + 32^\circ = 180^\circ Simplifying: 2x+32=1802x + 32^\circ = 180^\circ Subtract 32 from both sides: 2x=1482x = 148^\circ Divide by 2: x=74x = 74^\circ

So, the value of xx is 7474^\circ.

Would you like a more detailed explanation or have any questions? Here are five related questions:

  1. How do you determine if a triangle is isosceles from a diagram?
  2. What is the sum of the interior angles of any polygon?
  3. How can you find the third angle of a triangle if you know the other two?
  4. Why are the base angles in an isosceles triangle always equal?
  5. How do angle relationships help solve real-world problems?

Tip: Always remember that in an isosceles triangle, the angles opposite the equal sides are equal!

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Math Problem Analysis

Mathematical Concepts

Geometry
Isosceles Triangle
Sum of Interior Angles

Formulas

Sum of angles in a triangle = 180°
Equation: x + x + 32° = 180°

Theorems

Properties of Isosceles Triangles

Suitable Grade Level

Grades 6-8