Question

erimeter of an equilateral triangle is 30 cm. Its area is. ​

Answer 1

Answer:

a=10cm

P Perimeter

30

cm

Using the formula

P=3a

Solving

a=P

3=30

3=10cm

Answer 2

Answer:

30 cm^2

Explanation:

as all the sides of an equilateral triangle are equal.therefore

let each side of triangle be x cm. x+x+x=perimetre of triangle,3x=30 ,x=10. area of triangle=1/2B*H ,1/2*100=50 cm^2