Math Problem Statement

∠1 and angle, 2∠2 are complementary angles. If m, angle, 1, equals, left parenthesis, 2, x, minus, 26, right parenthesis, degreesm∠1=(2x−26) ∘ and m, angle, 2, equals, left parenthesis, 4, x, minus, 28, right parenthesis, degreesm∠2=(4x−28) ∘ , then find the measure of angle, 2∠2.

Solution

We are given that ∠1 and ∠2 are complementary angles. This means their sum is 90°. The expressions for their measures are:

m1=(2x26)m∠1 = (2x - 26)^\circ m2=(4x28)m∠2 = (4x - 28)^\circ

Since they are complementary, we can set up the equation:

m1+m2=90m∠1 + m∠2 = 90^\circ

Substitute the expressions for m1m∠1 and m2m∠2:

(2x26)+(4x28)=90(2x - 26) + (4x - 28) = 90

Now, simplify the equation:

6x54=906x - 54 = 90

Add 54 to both sides:

6x=1446x = 144

Divide by 6:

x=24x = 24

Now, substitute x=24x = 24 into the expression for m2m∠2:

m2=4x28=4(24)28=9628=68m∠2 = 4x - 28 = 4(24) - 28 = 96 - 28 = 68^\circ

Thus, the measure of ∠2 is 68°.

Would you like further clarification or details?

Here are some related questions:

  1. How can you verify if two angles are complementary?
  2. What happens if the sum of two angles is greater than 90°?
  3. How do you solve for the value of xx in complementary angle problems?
  4. What is the relationship between supplementary and complementary angles?
  5. How do we classify angles based on their measures?

Tip: In complementary angle problems, always remember their sum equals 90°, which simplifies finding unknowns.

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Math Problem Analysis

Mathematical Concepts

Algebra
Geometry
Complementary Angles

Formulas

m∠1 + m∠2 = 90°
m∠1 = (2x - 26)°
m∠2 = (4x - 28)°

Theorems

Complementary Angle Theorem

Suitable Grade Level

Grades 8-10