Question

If each side of is equilateral triangle is 22 CM then what is the area of the triangle?

1. 66 sq.cm
2. 121 sq.cm
3. 120 sq. root 3 sq.cm
4. 121 sq. root 3 sq.cm​

Answer 1

Area of equilateral triangle=(√3/4)×a²

where a is the side of equilateral triangle

Area=(√3/4)×22×22

Area=(√3)×11×11

Area=121√3 cm²