Question

each side of an equilateral triangle is 6 .find its area​

Answer 1

a =6cm, b=6cm, c=6cm

∴s=

2

a+b+c

= 2

6+6+6

=9cm

∴ Area of the equilateral triangle

=

√s(s−a)(s−b)(s−c)

= 9(9−6)(9−6)(9−6)

= 9(3)(3)(3)

=9 √3 cm²