Question

find area of a triangle, three sides are in the ratio 1 ratio 2 ratio 3 and its perimeter is 120 CM​

Answer 1

$x + 2x + 3x = 120 \\ 6x = 120 \\ x = 20cm \\ \\ \\ \\ x = 20cm \\ 2x = 40cm \\ 3x = 60cm$

$= \sqrt{60 \times 40 \times 20} \\ = \sqrt{2 \times 3 \times 10 \times 2 \times 2 \times 10 \times 2 \times 10} \\ = \sqrt{2 \times 3 \times 2 \times 5 \times 2 \times 2 \times 2 \times 5 \times 2 \times 5 \times 2 } \\ = 8 \times \sqrt{3} \times \sqrt{5} \\ = 8 \sqrt{15 } {cm}^{2}$

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mark as brainliest answer.

Use heron formula :-

s = 120/2 = 60 cm