Question

A design is made on a floor of a room by joining four triangular tiles of dimensions 51 cm, 37 cm and 20 cm each. Find the cost of polishing these four tiles at the rate of Rs 4 per cm2​

Answer 1

Answer:

The triangle tiles are of dimension 12cm,20cm and 24cm.

We know that,

Heron's formula,

S=

2

1

(12+20+24)=28

Area =

28(28−12)(28−20)(28−24)

=

28×16×8×4

=

14336

=119.73

Area =119.73

The cost of each tile =119.73×

14

=448

Then,

We get the cost of each tile is 448.