Question

Find the area of an equilateral triangle with a side of 6 inches. Answers are:

9√3 in2

6√3 in2

4.5√3 in2

Answer 1

Area= 1/2abSinC where a and b are sides and c is an angle. All sides= 6 inches, all angles= 60°

1/2x6x6xSin(60)= 9√3 in2

Answer 2

The answer is: 9√3 in2