Question

The perimeter of a triangle is 84cm and two of its sides are 26cm and 30cm. Find the measure of the third side. Also find the area of the triangle using Heron’s formula.​

Answer 1

Answer:

Step-by-step explanation:

Perimeter=84cm

Two sides=26cm and 30cm

now,

P=a+b+c

84=26+30+c

84-56=c

c=28

The third side is 28cm

now,

Area=hᵇb/2