Question

9. The legs of a right-angled triangle are in the ratio 3 : 4 and its area is 486 cm”. Find the lengths
of its legs.​

Answer 1

Answer:

Step-by-step explanation:

let the ratio be: 3x & 4x

using Pythagoras Theorem,

a^2 + b^2 = c^2

[3x]^2 + [4x]^2 = c^2

9x^2 + 16x^2 = c^2

25x^2 = c^2 .      [taking √]

√25^2 = √c^2

5x = c

Therefore, the Hypotenuese is 5cm…

Oh I'm sorry; This is a wrong answer

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