The platform is in the shape of a trapezoid with bases 35 feet and 41 feet and a height of 7.5 feet. If one bucket of cement covers 25 square feet, how many buckets will the students need to build the platform?

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Answer 1 · 2018-05-24T12:58:02

No. of buckets of cement required to build the platform #color(crimson)(= 11.4#

Area of trapezoid #A = (1/2) (b_1 + b_2) * h#

Given : #b_1 = 35’, b_2 = 41’, h = 7.5’#

#A = (1/2) * (35+41) * 7.5 = 285# sq ft

#25# sq ft requires 1 bucket of cement.

#285# sq ft requires #= 285 / 25 = 11.4# buckets