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What is the area of a trapezoid whose bases are 8cm and 12cm and has an area of 140cmsquare?
Wiki User
∙ 13y ago
You already know the area do you mean what is the height?
If so then it is worked out like this:-
1/2*(8+12)*height = 140
Multiply both sides by 2 and add up the numbers in the brackets
20*height = 280
Divide both sides by 20 to find the height:
height = 14 cm
Check: 1/2*(8+12)*14 = 140 square cm
Wiki User
∙ 13y ago
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Area = 0.5*12*7 = 42 square cm
What is an area of a trapezoid with bases of 12cm and 3cm and height is 9cm?
The formula for finding the area of a trapezoid is:A = (1/2) (b1 + b2 ) h
What is the area of a trapezoid bases are 12Cm and 8Cm and the height is 5Cm?
1/2*(12+8)*5 = 50 square cm
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The formula to calculate the area of a trapezoid is (1/2) * sum of the bases * height. Given that the height is 12 cm and the bases are 15 cm and another side, the area can be calculated as (1/2) * (15 + b) * 12, where b is the length of the other base.
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