Question

points
The respective ratio between the diagonal of a square and breadth of a rectangle is 7 : 5. The area of the square is 49 m2 and the length of the rectangle twice its breadth, what is the perimeter of the rectangle (in m.)​

Answer 1

Answer:

30 √2 m

Step-by-step explanation:

given

d :b = 7:5

area of square = 49 m ^2

side of sq= √49= 7 m

length of of rectangle= 2(l+b)= ?

diagonal of square = √ ( 7^2+7^2)= √49+49=√98= 7√2 m

d/b= 7/5=7√2/b ( d=7√2)

b=5√2 m

l =2×5√2= 10√2

perimeter=2(5√2+10√2)=2(15√2)=

30√2m

hope it helps