Math Problem Statement
Toni is analyzing two adjacent angles named M and R . The sum of the angles is 180° where the measure of ∠M is (4x + 20)∘ and the measure of ∠R is 36∘ .
What is the value of x ?
Solution
Since angles and are adjacent and their sum is , they form a straight angle. We can set up the equation:
Given:
- Measure of
- Measure of
So, we substitute and solve for :
Combine terms:
Subtract 56 from both sides:
Divide by 4:
Answer:
The value of is .
Would you like a step-by-step breakdown of the solution or have any other questions?
Here are some related questions:
- How would the value of change if the measure of was different?
- What is the value of when ?
- What are adjacent angles, and why do they sum to in this case?
- How could you determine if two angles are complementary or supplementary?
- Can the measure of be greater than ? Why or why not?
Tip: For any adjacent angles forming a straight line, always remember they are supplementary, summing to .
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Math Problem Analysis
Mathematical Concepts
Algebra
Angle Relationships
Linear Equations
Formulas
Sum of adjacent angles forming a straight line: ∠M + ∠R = 180°
Theorems
Supplementary Angles Theorem
Suitable Grade Level
Grades 6-8
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