What is the area of an equilateral triangle whose each side is 12 cm?
Correct answer D. 36√3 sq cm
Explanation
Area of an equilateral triangle = (√3/4) x side squared = (√3/4) x 144 = 36√3 sq cm. Using √3/2 instead of √3/4 gives the wrong value 72√3.
Answer checked How we write and check questions
Discussion