Just use Heron's formula:
A = √((23)(23-12)(23-16)(23-18))
A statue is erected on a triangular marble base. The lengths of the sides of the triangle are 12 feet, 16 feet, and 18 feet. What is the area of the region at the base of the statue to the nearest square foot?
169 ft2
144 ft2
143 ft2
94 ft2
1 answer