Question

Keiko wants to paint the ceiling of her restaurant. The ceiling is in the shape of a square. Its side lengths are 55 feet. Suppose each can of paint will cover square feet. How many cans will she need to paint the ceiling?

Answer 1

11 cans

Explanation

the area of a square = side * side

side = 55 feet

area = 55 * 55 = 3025 feet^2

cans = area / coverage

area = 3025 feet^2

coverage = 275 feet^2

cans = 3025/275 = 11

she will need 11 cans to paint the ceiling