Question

the sides of a triamgular plot are in the ratio 3:5;7 and its perimeter is 120 m .find its area .​

Answer 1

Answer:

sides of plot=3:5:7

=3x+5x+7x

120m=3x+5x+7x|

120m=15x

120/15=x

8=x

3(8)=24

5(8)=40

7(8)=56

2s=a+b+c

2s=24+40+56

2s=120

s=120/2

s=60

$\sqrt{60(60 - 24)(60 - 40)(60 - 56)}$

$\sqrt{60(36)(20)(4)}$

$\sqrt{2 \times 2 \times 3 \times 5 \times 2 \times 2 \times 3 \times 3 \times 2 \times 2 \times 5 \times 2 \times 2}$

$2 \times 2 \times 2 \times 2 \ \times 5 \times \sqrt[3]3$

$\sqrt[240]3$