Question

The sides of a triangle are in the ratio of 3 : 5 : 7 and its perimeter is 300 cm. Find Its area ?​

Answer 1

let the sides be 3x, 5x, 7x

so, 3x + 5x + 7x = 300

X = 300/15

X = 20

so the sides are 3x = 60,

5x = 100

7x = 140

so area can be easily found by herons formulae.

Answer 2

Answer:

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