Question

the length of a rectangular hall is 5 metre more than its breadth if the perimeter of the hall is 74 M find the find its length and breadth

Answer 1

heya!! mate^_^

your answer is - - - - - -

according to question,

let the breadth =x

length=x+5

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

2 (l+b)=74

2 (x+5+x)=74

2x+10+2x=74

4x+10=74

4x=74-10

4x=64

x=16

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

so,

length=16+5=21

breadth=16

Answer 2

lets breadth be "x"

length= x+5

perimeter of a rectangle = 2×(l+b)

⇒ 2×(x+5+x) = 74

= 4x+10 = 74

⇒ x= 16 m

∴ breadth is 16 m and length (x+5) is 21 m