Question

the perimeter of an equilateral triangle is 21/4cm. find the length of its each side.​

Answer 1

Answer:

Step-by-step explanation:perimeter= 3*length of each side

therefore21/4=3*each side

lenth of each side=7/4cm

Answer 2

Let each side = a

then, perimeter= 3a

21/4= 3a

a= 21/4*3

a= 7/4

Therefore, each side= 1.7cm