Question

one side 11 second is 6 third is 15(i) Find the semi-perimeter of triangle
(a) 14 m
(b) 16 m
(c) 18 m
(d) 20 m​

Answer 1

Answer :-

• Option (B) 16 m.

Explanation :-

Given :

• Sides of a Triangle are 11m, 6m and 15 m.

To Find :

• Semi Perimeter of Triangle.

Solution :

Semi-Perimeter means Half of Perimeter.

And, Perimeter = Sum of all sides.

So,

Semi-Perimeter = (a + b + c)/2.

Note :- Here, a,b and c are sides of Triangle.

Here,

• a = 11 m.
• b = 6 m.
• c = 15 m.

Put the values.

➠ Semi-Perimeter = (11 + 6 + 15)/2.

➠ Semi-Perimeter = (17 + 15)/2.

➠ Semi-Perimeter = 32/2.

➠ Semi-Perimeter = 16 m.

Therefore, Semi-Perimeter = 16 m.

Extra Information :-

• Area of Triangle = 1/2 × base × height.

• Heron's Formula = √[s(s – a)(s – b)(s – c)]

• Area of Equilateral triangle = √3a²/4

• Semi-Perimeter = (a + b + c)/2.

Answer 2

Step-by-step explanation:

answer is 16 m

hope it helps you