Question

The sides of a triangle are in the ratio 15:13:14 and its perimeter is 168 cm. find the area of the triangle

Answer 1

15+13+14/2 after that we get semi-perimiter of triangle so, s=21 ..let a=15,b=13,c=14 then use heron's formula. get answer

Answer 2

Answer:

• 1,344cm^2

Step-by-step explanation:

Perimeter =Sum of the length of all the sides of the triangle

168cm=15x+13x+14x

168cm=32x

X=168/42

X=4cm

Sides of the triangle =15*4=60cm

13*4=52cm

14*4=56cm

Now area of the triangle by herons formula is

Root 84(84-60)(84-52)(84-56)

=root 84*24*32*28

=root 18,06,336

=1,344cm^2