Question

please give me answer​

Answer 1

Answer:

explain the question once again ( written )

Answer 2

Step-by-step explanation:

length:breadth=3:4 given that

diagonal= 20

we know that in rectangle

$\sf{diagonal = \sqrt{(length)^2 + (breadth)^2 } }$

$\sf{length = 3k,breadth = 4k}\\\sf{20 = \sqrt{(length)^2 + (breadth)^2}\rightarrow 20 = \sqrt{3k^2 + 4k^2} }\\\sf{20 = 5k\rightarrow k = \frac{\cancel{20}}{\cancel{5}} = 4}\\\sf{length = 12,breadth = 16}$