Question

10. Perimeter of an equilateral triangle is 60m. The area is
a) 10/3 m
b) 1513 m?
C) 20/3 m
d) 100V3 m?

Answer 1

Answer:

Thus, the area of triangle is 100√3 m2.

Answer 2

Perimeter of an equilateral triangle=60m

a+a+a=60

3a=60

a=60/3

a=20m

Therefore,One side of an equilateral triangle is 20m.

Then,

Area of an equilateral triangle

=√3/4 × a^2 sq.units

=√3/4 × 20^2

=√3/4 × 20 × 20

=√3 × 5 × 20

=100√3 m^2

Therefore,

Option D 100√3 m^2 is the answer.