Question

The perimeter of a rectangle is 80m and its length is one metre more than twice the breadth. What are its length and breadth

Answer 1

Answer:

given :-

perimeter of the rectangle = 80m

ATQ, length of the rectangle is one more meter than twice it's breadth.

let the breadth of the rectangle be x

therefore it's length will be = 2x + 1

formula to find the perimeter of a rectangle is 2(l + b)

so we can write,

➡ 2(l + b) = 80 meters

putting value of b and l,

➡ 2(2x + 1 + x) = 80m

➡ 3x + 1 = 80/2

➡ 3x = 40 - 1

➡ x = 39/3

➡ x = 13m

hence,

breadth of the rectangle = x

= 13m

and length of the rectangle = 2x + 1

= 2(13) + 1

= 27m

i hope it will be useful

Answer 2

Answer:

In a rectangle,

Let Breadth = x

then length = 1+2x

Perimeter = 2(l+b)

80 = 2(1+2x+x)

80=2(1+3x)

80=2+6x

80-2=6x

78 =6x

x =78/6

x. =13m

breadth = x = 13 m

length = 1+2x=27 m