Math Problem Statement

Find x and y in the triangle where one angle is 67°, another is 38°, and the third angle is unknown (x), with a right angle in the triangle.

Solution

To solve this problem, we are dealing with a right triangle and the properties of its angles.

Steps to Solve:

  1. Understand the Angle Relationships in a Triangle:

    • The sum of the angles in any triangle is 180180^\circ.
    • In a right triangle, one of the angles is 9090^\circ, leaving the other two angles to sum to 9090^\circ.
  2. Label the Angles:

    • Given: y=38y = 38^\circ, 6767^\circ, and xx as the remaining unknown angle.

Solution for xx:

The sum of the angles in a triangle is 180180^\circ: x+y+90=180x + y + 90^\circ = 180^\circ Substitute y=38y = 38^\circ: x+38+90=180x + 38^\circ + 90^\circ = 180^\circ x=180128x = 180^\circ - 128^\circ x=52x = 52^\circ

Solution for yy:

From the diagram, yy is already labeled as 3838^\circ.

Final Answer:

  • x=52x = 52^\circ
  • y=38y = 38^\circ

Would you like further explanation, or do you have other questions?

Related Questions:

  1. How can you confirm the sum of angles in any triangle?
  2. What are the properties of right triangles that make them unique?
  3. How would the solution change if the triangle were not a right triangle?
  4. Can you explain why angle xx is complementary to yy?
  5. How do trigonometric ratios relate to this triangle’s angles?

Tip: Always verify the angle sum when working with triangles—it ensures accuracy.

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Math Problem Analysis

Mathematical Concepts

Geometry
Triangle Properties
Angle Sum of a Triangle

Formulas

Sum of angles in a triangle = 180°
Sum of complementary angles = 90°

Theorems

Triangle Sum Theorem
Complementary Angles Theorem

Suitable Grade Level

Grades 6-8