Question

one side of a equilateral triangle is a,then the semi perimeter of a triangle is​

Answer 1

Answer:

perimeter=3×a

semi-perimeter=3a/2

Answer 2

The semi perimeter of the triangle is 3a/2

Given :

The length of the given triangle's one side = a

O

Length of the other two sides of the given triangle = a,a

(Because, equilateral triangle has three sides of totally equal length)

• Now,we have to calculate the perimeter of the given triangle by using the following formula :

3× length of one side

Perimeter = (3×a) = 3a

• At last we have to calculate the semi perimeter of the given triangle by using the following formula -

Semi perimeter = Perimeter/2

• So,the semi perimeter of the given triangle = 3a ÷ 2 = 3a/2 (answer)