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Q4.

Expert-verified
Found in: Page 689

### Pre-algebra

Book edition Common Core Edition
Author(s) Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff
Pages 183 pages
ISBN 9780547587776

# Tell whether the angles are complementary, supplementary, or neither.$\begin{array}{c}m\angle 3=108°\\ m\angle 4=72°\end{array}$

The pair of angles are supplementary to each other.

See the step by step solution

## Step 1. Given Information.

The choices are: complementary, supplementary, or neither

## Step 2. Concept used.

If the sum of two angles is $90°$ then the angles are called complementary angles and if the sum is $180°$ then the angles are called supplementary angles.

## Step 3. Calculation.

Calculate the sum of the measures of the two angles.

$\begin{array}{c}m\angle 3+m\angle 4=108°+72°\\ =180°\end{array}$

## Step 4. Conclusion.

Since the sum of angles is $180°$, the given two angles are a supplementary angle pair.