Math Problem Statement

In the figure below, m∠1 = (x - 6)° and m∠2 = 5x°. Find the angle measures.

Solution

The problem involves determining the measures of two angles, m1m \angle 1 and m2m \angle 2, given their algebraic expressions. Let's solve it step by step.

Given:

  1. m1=(x6)m \angle 1 = (x - 6)^\circ
  2. m2=5xm \angle 2 = 5x^\circ

From the diagram, we can see that angles 1\angle 1 and 2\angle 2 are complementary, meaning their measures add up to 9090^\circ: m1+m2=90m \angle 1 + m \angle 2 = 90^\circ

Step 1: Set up the equation

Substitute the given expressions for m1m \angle 1 and m2m \angle 2: (x6)+5x=90(x - 6) + 5x = 90

Step 2: Solve for xx

Combine like terms: 6x6=906x - 6 = 90

Add 6 to both sides: 6x=966x = 96

Divide by 6: x=16x = 16

Step 3: Find m1m \angle 1 and m2m \angle 2

Now substitute x=16x = 16 into the expressions for m1m \angle 1 and m2m \angle 2:

For m1m \angle 1: m1=x6=166=10m \angle 1 = x - 6 = 16 - 6 = 10^\circ

For m2m \angle 2: m2=5x=5(16)=80m \angle 2 = 5x = 5(16) = 80^\circ

Final Answer:

m1=10m \angle 1 = 10^\circ m2=80m \angle 2 = 80^\circ

Would you like me to go over the steps in more detail, or do you have further questions?


Related Questions:

  1. What are complementary angles, and how do they relate to this problem?
  2. How do you solve linear equations with variables on one side?
  3. What happens if 1\angle 1 and 2\angle 2 were supplementary instead of complementary?
  4. What is the geometric significance of complementary angles in right triangles?
  5. Can you verify the result by substituting back into the original complementary equation?

Tip:

Always double-check your work by substituting the value of the variable back into the original expressions to ensure the results make sense.

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Math Problem Analysis

Mathematical Concepts

Algebra
Geometry
Complementary Angles

Formulas

m∠1 + m∠2 = 90°

Theorems

Definition of complementary angles

Suitable Grade Level

Grades 7-9