Question

2:Sides of a triangle are in the ratio of 12: 17: 25 and its perimeter is 540cm. Find its area

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

12x +17x + 25x = 540

54x =540

x = 10

Therefore the value x is 10

12x =12 *10 =120

17x =17 *10=170

25x= 25 * 10=250

The sides of the triangle are 120,170,250

To find area of triangle

S = a+b+c/2

= 120 +170 +250 /2

=270

By using herons formula

= root of s( s-a) (s-b) (s-c)

=root of 270(270-120) (2 70-170) (270-250)

= root of 270 *150*100*20

= root of 81000000

= 9000cm

Therefore the area of the triangle is 9000cm