Mathematics, 19.03.2021 22:50 jhunruh6247
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✨
Answers: 3
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The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.
Answers: 1
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