Question

Plz give me answer to this question

Answer 1

let length and breadth of rectangle be l and b
given l = 3b
        l - 3b = 0→1
given perimeter is 120m
so 2(l+b) = 120
     2(3b+b) = 120
     8b =120
     b = 15m
so l = 3(15)
     l = 45m
we have to find area = l×b
                                    = 45×15
so area of rectangle = 675 sq.m

Answer 2

Let the breadth ( వెడేల్పు) = x
Then length (పొడవు) = 3x

Perimeter = 2 ( l + b) = 120 m
= 2 ( 3x + x) = 120
= 2 ( 4x ) = 120
= 8x = 120
= x = 120 / 8
= x = 15

Therefore, Breath = 15m, Length = 3 (15) = 45m

Area (వైశాల్యం) = length * breadth
= 15 * 45
= 675 sq metres