Question

Example 1: Find the area of a triangle, two sides of which are 8 cm and 11 cm and
the perimeter is 32 cm (see Fig. 8.6).
Solution : Here we have perimeter of the triangle = 32 cm. a = 8 cm and b = 11 cm​

Answer 1

Answer:

..

area of triangle is 1/2 base × height

= 1/2 ×8 ××11

= 44

Answer 2

Answer:

Answer:

8

Step-by-step explanation:

s(semi-perimeter) and a,b and c are sides of a triangle

using Heron's formula,

a=8 cm

b=11 cm

c=32-(8+11)

c=32-19

c=13 cm

s=8+11+13/2=16

2*2*2*

8

Step-by-step explanation: