An optical chip grid is formed using a regular polygonal pattern where each internal angle is 162°. How many sides does each polygonal sensor pad have?
Show answer & explanation
Correct answer: A
Explanation
Given:
Each interior angle = 162°
By the formula:
Each interior angle = ((n − 2) × 180) / n
162 = ((n − 2) × 180) / n
162n = 180n − 360
360 = 180n − 162n
360 = 18n
n = 20