Keke J.

asked • 03/23/14# Devon and Jamal both draw regular polygons. Devon's polygon has 14 sides. Jamal's polygon has 15 sides. Which statement is NOT true?

## 3 Answers By Expert Tutors

IBRAHIM A. answered • 03/24/14

Educated Tutor For Excellent Grades in Various Subjects

Steve S.

03/24/14

IBRAHIM A.

03/24/14

Steve S.

03/24/14

Parviz F.

03/24/14

Steve S. answered • 03/24/14

Tutoring in Precalculus, Trig, and Differential Calculus

Each external angle: 360°/14

Each internal angle: 180°-360°/14

15 sides

Each external angle: 360°/15

Each internal angle: 180°-360°/15

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3/27/14, 22:05 EST

Devon and Jamal both draw regular polygons. Devon's polygon has 14 sides. Jamal's polygon has 15 sides. Which statement is NOT true?

A. The measures of all the exterior angles of Devon’s polygon are equal.

B. The sum of all the exterior angles of Devon’s polygon equals the sum of all the exterior angles of Jamal’s polygon.

C. The measure of one of the exterior angles of Jamal’s polygon is greater than the measure of one of the exterior angles of Devon’s polygon.

D. The measure of one of the exterior angles of Jamal’s polygon plus the measure of the adjacent interior angle is 180°.

C is FALSE. Jamal’s exterior angles are each 360°/15 while Devon’s exterior angles are each 360°/14. So Devon’s is larger.

All the others are TRUE.

Parviz F. answered • 03/23/14

Mathematics professor at Community Colleges

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