Question

question 3 of 10 what is the sum of the measures of the interior angles of a decagon? a. 1440° b. 2880° c. 1800° d. 360° e. 3600° f. 36°

Explanation:

Step1: Identify number of sides

A decagon has 10 sides, so \( n = 10 \).

Step2: Apply interior angle sum formula

Sum = \( (n - 2) \times 180^\circ \). Substitute \( n = 10 \): \( (10 - 2) \times 180^\circ = 8 \times 180^\circ = 1440^\circ \).

Answer:

A. 1440°