Question

The perimeter of a triangle is 420 m and its sides are in ratio 6:7:8. Find the area of the triangle

Answer 1

perimeter = a+b+c in respect to scalene triangle

6x+7x+8x=420

21x=420

x=420/21

x=20

6x=120 7x=140 8x=160

Answer 2

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Step-by-step explanation:

Perimeter of the triangle - sum of all sides

so,

6x + 7x + 8x - 420

21x - 420

x - 420/21

x - 20

6x - 120 m

7x - 140 m

8x - 160m