Find the measurement of
an interior angle of a regular
decagon (10-sided figure).

Answer:
144°
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Geometry
Step-by-step explanation:
Step 1: Define
Number of sides n = 10
Step 2: Find
Step 3: Find 1 angle
We have 10 sides.