Solve the problem.
-A room in the shape of a triangle has sides of length 14.5 yards, 13.8 yards, and 18.9 yards. If carpeting costs $18.85 per square yard, padding costs $2.40 per square yard, and there is no charge
For installation, how much, to the nearest dollar, will it cost to carpet the room?
A)$99
B)$435
C)$3782
D)$2114

Question

Quizplus · Accepted Answer

First, use Heron's formula to find the area of the triangle: s = (14.5 + 13.8 + 18.9) / 2 = 23.6. Area = √(23.6(23.6-14.5)(23.6-13.8)(23.6-18.9)) ≈ 96.3 square yards. Total cost = (18.85 + 2.40) * 96.3 ≈ $2114.

Solve the Problem. -A Room in the Shape of a Triangle Has Sides