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10.4 Worksheet
By Amber Nicholson
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Last updated over 3 years ago
20 questions
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Round each answer in this worksheet to the nearest hundredth, if necessary.
Question 1
1.
Find the central angle for a square.
Question 2
2.
Find the central angle for a regular pentagon.
Question 3
3.
Find the central angle for a regular hexagon.
Question 4
4.
Find the central angle for a regular heptagon.
Question 5
5.
Find the central angle for a regular octagon.
Question 6
6.
Find the central angle for a regular nonagon.
Question 7
7.
Find the central angle for a regular decagon.
Question 8
8.
Find the central angle for a regular dodecagon.
Question 9
9.
Find the
area
of a regular octagon with an apothem of 4.8 cm and a side length of 4 cm.
visibility
View drawing
Question 10
10.
Find the
area
of a regular decagon with a side length of 24 in and an apothem of 12 in.
visibility
View drawing
Question 11
11.
Find the
area
of a regular hexagon with a side length of 23.1 m and an apothem of 20 m.
visibility
View drawing
Question 12
12.
Find the
area
of a regular pentagon with an apothem of 24 ft and a radius of 29.67 ft.
visibility
View drawing
Question 13
13.
Find the
area
of a regular dodecagon with a side length of 6 in and a radius of 11.59 in.
visibility
View drawing
Question 14
14.
The area of a regular pentagon is 557.43 ft
2
and the length of one side is 18 ft. Find the length of the
apothem
.
visibility
View drawing
Question 15
15.
The area of a regular decagon is 123.11 cm
2
and the length of one side is 4 cm. Find the length of the
apothem
.
visibility
View drawing
Question 16
16.
The area of a regular triangle is 292.28 ft
2
and the length of the apothem is 7.5 ft. Find the length of the
one side
.
visibility
View drawing
Question 17
17.
Use trigonometry to find the
area
of a regular hexagon with an apothem of 15 m.
visibility
View drawing
Question 18
18.
Use trigonometry to find the
area
of a regular decagon with an apothem of 9.4 cm.
visibility
View drawing
Question 19
19.
Use trigonometry to find the
area
of a regular octagon with a side length of 12 ft.
visibility
View drawing
Question 20
20.
Use trigonometry to find the
area
of a regular dodecagon with a radius of 5 in.
visibility
View drawing