Question

If perimeter of rectangular is x cm and breath is 5 cm and length is twice the breath find length? and also perimeter. ​

Answer 1

Step-by-step explanation:

Let the breadth of the field = x cm ∴ its length = 2x and, its perimeter = 2 x (length + breadth) = 2 x (2x + x) = 2(3x) = 6x cm Perimeter = 60 cm

60 cm = 6x cm

x = 60/6 = 10 cm

Breadth = x cm = 10 cm

Length = 2x cm = 20 cm

Answer 2

Given,

breadth = 5 cm.

then , length = twice the breadth = 2×5 = 10 cm.

and , perimeter = x cm

We know that,

perimeter = 2(length+breadth)

ATQ,

$x = 2(10 + 5) \\x = 2 \times 15 \\ x = 30 \: cm.$

Therefore, length = 10 cm , breadth = 5. , perimeter = 30 cm.