Question

find the area of triangle abc whose sides are 20 ,30 ,80​

Answer 1

According to the Question

Assumption

P = 20cin

Q-30 cm

R = 40crr

Now,

Perimeter of AP+Q+R

- (20-30+40)

Semi perimeter

P+Q+R 2

90

= 45 cm

Using Herons Formula

Area of Asis-alis-b) (s-ci

45(45-20)(45-30)(45-40)

√45 x 25 x 16 x 6

-√3x5-x5-x5x3

-75 3.8/29

= 290,47 cm²