(c) 38 in.
(d) 76 in.- Find the perimeter of a triangle whose sides are 12 yards, 13 yards,
and 16 yards.
(a) 41 yd
(b) 82 yd
(c) 20.5 yd
(d) 123 yd - If the radius of a circle is 4.8 inches, find the diameter.
(a) 9.6 in.
(b) 15.072 in.
(c) 4.8 in.
(d) 2.4 in. - Find the area of a circle whose radius is 9 inches. Usep¼3.14.
(a) 28.26 in.^2
(b) 254.34 in.^2
(c) 1017.36 in.^2
(d) 56.52 in.^2 - Find the area of a square whose side is 6.2 feet.
(a) 38.44 ft^2
(b) 24.8 ft^2
(c) 1.55 ft^2
(d) 12.4 ft^2 - Find the area of a trapezoid whose height is 12 inches and whose bases
are 7 inches and 14 inches.
(a) 288 in.^2
(b) 252 in.^2
(c) 126 in.^2
(d) 144 in.^2 - Find the area of a rectangle whose length is 8 inches and whose width
is 5 inches.
(a) 40 in.^2
(b) 26 in.^2
(c) 13 in^2
(d) 25 in.^2 - Find the area of a triangle whose base is 42 yards and whose height is
36 yards.
186 CHAPTER 9 Informal Geometry