Question

the perimeter of a triangular field is 135 cm and its sides are in the ratio 25 : 17 : 12 find its area

Answer 1

Perimeter=135cm
Let the ratio be. 25x,17x,12x
25x+17x+12x=135
54x=135
x=135/54
x=2.5
Putting the value 12x=12×2.5=30
17x=17×2.5=42.5
25x=25×2.5=62.5
Sides of triangle are 30 cm,42.5cm,62.5cm


Area of triangle=1/2bh
=1/2×62.5×42.5
=2656.25/2
=1328.125

Answer 2

Answer:

Step-by-step explanation:

Perimeter=135cm

Let the ratio be. 25x,17x,12x

25x+17x+12x=135

54x=135

x=135/54

x=2.5

Putting the value 12x=12×2.5=30

17x=17×2.5=42.5

25x=25×2.5=62.5

Sides of triangle are 30 cm,42.5cm,62.5cm

Area of triangle=1/2bh

=1/2×62.5×42.5

=2656.25/2

=1328.125

Read more on Brainly.in - https://brainly.in/question/4129443#readmore