Question

perimeter of an equilateral triangle is 60cm. find its height​

Answer 1

Answer:

perimeter = 3a

60=3a

20=a

now the sides of equilateral triangle are 20 cm each

Now the height will be

1/2×base×height=900√3

height=90√3

Answer 2

Since its an equilateral triangle, all the sides are equal

let its sides be x

so, x+x+x= 60

3x=60

x=60/3

x=20

Area of triangle by formula

1/2*base*ht=100root3

apply values