5. Calculate the area 14 cm

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Please Solve Number 5
3.
A regular polygon has 21 sides.
4. Find the area and circumference of the circle.
Leave your answers in terms of T.
a. What is the sum of the interior angles of the
21-gon?
8 yd
b. What is the measure of an interior angle of
the 21-gon?
c. What is the measure of an exterior angle of
the 21-gon?
Area =
Circumference =
6. If the exterior angle of a regular polygon is 30°,
how many sides does the polygon have?
5. Calculate the area
14 cm
Transcribed Image Text:3. A regular polygon has 21 sides. 4. Find the area and circumference of the circle. Leave your answers in terms of T. a. What is the sum of the interior angles of the 21-gon? 8 yd b. What is the measure of an interior angle of the 21-gon? c. What is the measure of an exterior angle of the 21-gon? Area = Circumference = 6. If the exterior angle of a regular polygon is 30°, how many sides does the polygon have? 5. Calculate the area 14 cm
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