Question

What is the area of the pools floor? A pool covers $1.70 per square foot. how much would a cover for rhe pool cost?

9 ft
11 ft
15 ft
16 ft
17.5 Ft
11ft
14ft

Answer 1

Formula for area of a trapezoid:

a = h(b1 + b2) x 1/2

let's plug in the values for the left trapezoid;

a = 14(9 + 16) x 1/2

a = (126 + 224) x 1/2

a = 350 x 1/2

a = 175

now for the right trapezoid;

a = 15(11 + 17.5) x 1/2

a = (165 + 262.5) x 1/2

a = 427.5 x 1/2

a = 213.75

Now let's add both of their sums:

175 + 213.75 = 388.75

But now we need to find the cost, so we multiply the cost with the total sum;

388.75 x $1.7 = 660.875, around $660.88