Question

find the area of triangle whose side are 12cm, 16cm and 20 cm​

Answer 1

Answer:

Sides of triangle a=12cm, b=16cm and c=20cm

s=

2

a+b+c

=

2

12+16+20

=

2

48

=24cm

Using Heron's formula,

Area of a triangle=

s(s−a)(s−b)(s−c)

=

(24−12)(24−16)(24−20)

=

(12)(8)(4)

=

4×3×4×3×4

=4×3×2=24sq.cm