Question

A company makes glass lawn ornaments with a radius of 9 inches. The glass to make the balls costs the company $0.03 per

square inch. To the nearest cent, how much does the company pay for the glass to create one omament? Use 3.14 for
Recall the formula SA=472
$3.39
$6.78
$30.52
$122.08

Answer 1

$30.52

Explanation:

4 x 9^2 x 3.14 x 0.03 = around 30.52

Answer 2

Answer: $30.52

Explanation:

Hi, to answer this question we have to calculate the surface area of the ornament:

Surface Area of a sphere = 4π r²

Replacing with the values given:

A = 4(3.14) (9)² = 1,017.36in2

Finally, we have to multiply the surface area by the price per square inch of glass.

1,017.36 (0.03)= $30.52

Feel free to ask for more if needed or if you did not understand something.