Question

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Answer 1

An expression to find the amount of wood needed to build the two side panels of a Skateboard ramp is A = 1/2(a+b)h

About 840 square in wood is needed to build the side panels of a skateboard ramp

Area of a trapezoid

A) The skateboard ramp shown is a trapezoid. Since the formula for calculating the area of trapezoid is expressed as;

A = 1/2(a+b)h

where

a and b are the parallel sides of the trapezoid

h is the height of the ramp

Hence an expression to find the amount of wood needed to build the two side panels of a Skateboard ramp is A = 1/2(a+b)h

B) Determining the amount of wood needed;

a = 20in

b = 50in

h = 24in

Substitute

A = 1/2(20+50)(24)

A = 1/2(70)(24)

A = 35 * 24

A = 840 square in

Hence about 840 square in wood is needed to build the side panels of a skateboard ramp

Learn more on area of trapezoid here: brainly.com/question/1463152

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