Question

Find the side of equilateral triangle whose area is 15 root 3 cm square

Answer 1

hello

area of equilateral triangle = √3/4 a square

area = 15√3 (given)

√3/4 a square = 15√3

a sq = 15√3×4/√3

a = √15×2×2

a = 2√15 cm

hope it helps :)

Answer 2

given area = 15√3 cm sq

area of equilateral triangle = √3 /4 a² = 15 √3

cross division

asq = 15 √3 * 4√3

a square = √15 *2*2

a = 2√15 cm