Question

A rectangle breadth is 9 cm and perimeter is 50 m find the area and the length​

Answer 1

Answer:

Length = 16, area = 144

Step-by-step explanation:

50 - (9 x 2) = 50 - 18

                  = 32

32/2 = 16

16 x 9 = 144

Answer 2

Answer:

The length is 24.91m and the area is 2.2419$m^{2}$

Step-by-step explanation:

The breadth of the rectangle is given to be 9cm and the perimeter of the respective rectangle is mentioned to be 50m. As we can see that the breadth is given in centimeters so we first will convert it into meters and then solve the question.

Breadth (b) = 9cm = 0.09m

We assume the length of the rectangle to be n.

Perimeter = $2(l+b)$

⇒ 50 = $2(n +0.09)$

⇒ 50 = 2n + 0.18

⇒ 50 - 0.18 = 2n

⇒ 49.82 = 2n

⇒ n = 49.82 ÷ 2

⇒ n = 24.91 m

Hence the length of the rectangle is 24.91m

Area = l × b

∴ Area = 24.91 × 0.09 $m^{2}$

Area = 2.2419$m^{2}$