Question

A man is planning a patio. The triangular-shaped patio has sides 22 ft, 19 ft, and 27 ft. Find the number of square feet of surface area to be covered with concrete.

Answer 1

207.2 ft²

Explanation:

A = sqrt(s * (s - a) * (s - b) * (s - c))

s = (a + b + c) / 2

s = (22 + 19 + 27) / 2

s = 68 / 2

s = 34 ft

A = sqrt(34 * (34 - 22) * (34 - 19) * (34 - 27))

A = sqrt(34 * 12 * 15 * 7)

A = sqrt(42840)

A ≈ 207.2 ft²