Question

side of an equilateral triangle is 4 cm its area is ​

Answer 1

Step-by-step explanation:

perimeter is 12cm

semi perimeter 12/2 =6

each side is 4

apply herons formula

and anser is 4√3

Answer 2

Answer:

4√3 cm² is the area of an equilateral triangle.

Step-by-step explanation:

It is given that,

Side of an equilateral △ is=4cm

we know that,

Area=√3/4×a²

putting value of a

√3/4×4² =4√3 cm²

4√3 cm² is the area of an equilateral triangle.