Question

The breadth and the perimeter of a park are 5 m and 30 m respectively. What will be the
length of a park?
(a) 150 m
(b) 6 m
(c) 35 m
(d) 10 m
​

Answer 1

Step-by-step explanation:

Given that,

Perimeter of rectangular Park = 30 m

Breath of rectangular Park = 5 m

Length of rectangular Park = ?

So,

Perimeter of rectangle = 2 ( L+B )

30 m = 2 ( l+5 )

30/2 m = L + 5

15 - 5 m = L

10 m = L

Hence, the length of the rectangular Park will be 10 m.

Answer 2

Solution:-

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$\implies$ Here it is given in the question that the breadth and the perimeter of a rectangular park are 5 cm and 30 m respectively. Now the question has asked us to find out the length of the rectangular park. So, here we will use the formula of perimeter of rectangle by assuming the length as L. The result which we will get after solving by applying the formula will be the length.

ANSWER:-

☯ The length of the rectangle is 10 m.

GIVEN:-

⟿ Breadth = 5 m

⟿ Perimeter = 30 m

TO FIND:-

» Length of the rectangle = ?

FORMULA:-

❖ Perimeter of rectangle = 2(L + B) [For finding the length]

SOLVING BY APPLYING THE FORMULA:-

• Finding the length
• Let the length be L.

➤ 30 m = 2(L + 5 m)

➤ 30 m = 2 × (L + 5 m)

➤ Transposing 2 to L.H.S.

➤ 30 / 2 m = L + 5 m

➤ 15 m = L + 5 m

➤ Transposing 5 m to L.H.S

➤ 15 m - 5 m = L

➤ 10 m = L

➤ L = 10 m

Thus, we got the answer. The length of the rectangle is 10 m.

VERIFICATION:-

➤ 2(10 m + 5 m)

➤ 2 × 15 m

➤ 2 × 15 m = 30 m

➤ 30 m

Hence, Verified.

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