Question

Find the area of an equilateral triangle whose one side is 7 cm

Answer 1

Answer:

22.5cm2

Step-by-step explanation:

area of equilateral triangle = under root 3/4 X a2. = root 3/4 X (7)2 = under root 3/4 x49 = 22.5cm2

approx or 49 under root 3/4

Answer 2

Answer:

49√3/4

Step-by-step explanation:

area of equilateral triangle =√3/4*a^2

√3/4 x7x7

√3/4*49