Solve the problem.
-A room in the shape of a triangle has sides of length 18.1 yards, 14.8 yards, and 15.8 yards. If carpeting costs $18.88 per square yard, padding costs $2.00 per square yard, and there is no charge
For installation, how much, to the nearest dollar, will it cost to carpet the room?
A) $472
B) $2327
C) $4233
D) $111

Question

Quizplus · Accepted Answer

First, use Heron's formula to find the area of the triangle: s = (18.1 + 14.8 + 15.8) / 2 = 24.35. Area = √(24.35(24.35-18.1)(24.35-14.8)(24.35-15.8)) ≈ 116.5 square yards. Total cost = (18.88 + 2.00) * 116.5 ≈ $2327.

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