Question

Note: pls explain with step by step
Don't post irrevalant answers​

Answer 1

Answer:

9581.2 cm²

Step-by-step explanation:

let the sides are 12x,17x and 25 x

so perimeter=12x+17x+25x

=54x=540

x=10

Thus sides are: 120cm,170 cm and 250 cm

s=perimeter/2=540/2=270cm

s area S=√270*(270-120)(270-170)(270-250)

=√(270*150*100*20

=100√(27*17*20

=100*3*2√(3*17*5

=600√(255

=9581.2 cm²

Answer 2

Step-by-step explanation:

12x + 17x + 25x = 540

54x = 540

x = 540/ 54

x = 10

side of triangles are

1st side = 120

2nd side = 170

3rd side = 250

area of triangle =

s = a + b + c /2

s = 120 + 170 + 250 / 2

s = 540/2

s = 270

area = √s (s - a ) (s - b ) ( s - c )

area = √ 540(540-120)(540-170)(540-250)

area = √ 540 (420)(370)( 290)

area = 9000