Page 711 - Basic College Mathematics with Early Integers

688 C HAPTE R 9 I GEOMETRY

Find the measure of angle x in each figure.

69. 70.
58
116
x 34
44 x

71. 72.
x
x m
85 m n
7
n
123

Find the unknown diameter or radius as indicated.

73. 74.
r 6.3 cm
d 26 m
d ?
r ?

Find the perimeter of each figure.

75. 76. 77. 22 ft 11 ft

Square 5q dm 11.2 in. 15 ft
7 in.
42 ft
9.1 in.

40 ft

Find the area of each figure. For the circle, find the exact area and then use p L 3.14 to approximate the area.

78. 43 m 79.
3 m
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42 m
13 m
14 m