Question

A side of an equilateral triangle is 4.6 cm, find its perimeter.​

Answer 1

13.8 cm

Explanation:

equilateral = three congruent sides

perimeter = 4.6 · 3 = 13.8 cm

Answer 2

Perimeter

To find a triangle's perimeter, add all of its sides.

Formula :

• 
  `\sf{P=a+b+c}`

where a, b, and c are the sides.

Substitute the values:

• 
  `\sf{P=4.6+4.6+4.6}`
• 
  `\sf{P=13.8\:cm}`

Therefore, the perimeter is 13.8 cm.