Question

The side of an equilateral triangle is denoted by s. Then, the perimeter of the equilateral triangle is expressed as _______.

Answer 1

Answer:

side of equilateral triangle is 's'

Step-by-step explanation:

then

perimeter= 3×side

= 3×s

=3s

value of s

perimeter = 180°

3s = 180°

s = 180°/3

s = 60°

Answer 2

3s

Step-by-step explanation:

Solution:

The side of the equilateral triangle is denoted by s. We know that in an equilateral triangle, all the three sides are equal.

Consider an equilateral ∆ABC:

Here, the length of the three sides are:

• AB = s
• BC = s
• AC = s

Perimeter of a triangle:

In general, Perimeter of a triangle is equal to the sum of all three sides of a triangle. This means:

• Perimeter of a triangle = AB+BC+AC

Perimeter of an equilateral triangle:

Therefore, perimeter of the equilateral triangle =

➪AB+BC+AC

➪ s+s+s

➪ 3s

Therefore, Perimeter of an equilateral triangle is denoted by 3s