Question

Jun plans to cover his patio with the dimensions shown below in bricks. Each case of bricks covers 12 square feet. How many cases of bricks does Jun need?

Answer 1

30 with extra

Explanation:

It would be 29 and a little more but she would need 30 and have leftovers.

Answer 2

30

Explanation:

Find the trapezoid area.

A=1/2h(b1+b2)

A=1/2(12)(6+15)

A=1/2(12)(21)

A=6(21)

A=126

Find the square

A=s²

A=15²

a=225

Add them.

126+225=351

Divide

351÷12=29.25

Round to 30 because 29 not enough.