Help please The side of an equilateral triangle has a length of 5.4 m. The height of the triangle is approximately 4.7 m. What are the perimeter and area of this triangle? Round your answers to the nearest tenth.

perimeter: 16.2 m; area: 12.7 m2

perimeter: 10.1 m; area: 12.7 m2

perimeter: 16.2 m; area: 10.1 m2

Find the area of a parallelogram with b = 140 cm and h = 9.7 cm.

679 cm2

1,358 cm2

19,600 cm2

About how tall is a two-story building?

25 inches

6 inches

20 feet

Find the area of a triangle with base b and height h. Round your answer to the nearest hundredth if necessary.
b = 5.8 mi
h = 14.6 mi

84.68 mi2

169.36 mi2

42.34 mi2

Find the area of a triangle with base b and height h. Round your answer to the nearest hundredth if necessary.
b = 14.3 mi
h = 10.7 mi

153.01 mi2

76.51 mi2

57.25 mi2

Find the missing measures for the rectangle.

l = _?_
w = 2 cm
A = _?_
P = 25 cm

10.5 cm; 25 cm2

12.5 cm; 21 cm2

10.5 cm; 21 cm2

A rectangular fish pond is 21 ft2 in area. If the owner can surround the pond with a 20-foot fence, what are the dimensions of the pond?

3 ft by 7 ft

3.5 ft by 6 ft

3.5 ft by 7 ft

Which customary unit of measure would you use to estimate the perimeter of your classroom doorway?

centimeters

feet

inches

Find the area of a trapezoid with b1 = 13.8 cm, b2 = 16.8 cm, and h = 4 cm.

27.6 cm2

122.4 cm2

61.2 cm2

✨thank you✨