Question 1055931: find the perimeter of a trapezoid with 3 ft. in height and 7 ft. and 8 ft. in both sides the area is 10 ft Answer by ikleyn(52790) (Show Source):
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find the perimeter of a trapezoid with 3 ft. in height and 7 ft. and 8 ft. in both sides. The area is 10 ft
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My dear, the area can not be 10 ft.
The area is measured in square units.
So, I will assume that the area is 10 .
1. Having the area and the height, you can find the half of the sum of the bases.
If the bases are "a" and "b", then = = ft.
2. Having the half of the sum of the bases, you can find the sum itself:
a + b = = ft.
3. Finally, you will find the perimeter by adding the lateral side lengths 7 and 8 ft to ft.
Answer. The perimeter is 7+8+ ft.
