Question

2. What is the length of a rectangular garden
of perimeter 45 m and width 9 m?​

Answer 1

Step-by-step explanation:

Let the width of the garden =x meter

Then length=(x+4) meter

Half perimeter =36 m

So perimeter of garden =(2×36)=72 meters

According to the question

⇒2(l+b)=72

⇒2(x+x+4)=72

⇒2x+2x+4=74⇒4x=64⇒x=16 meters

Hence,the width of the garden =16 meters

The length of the garden =(16+4)=20 meters

Answer 2

Answer:

13 1/2 or 13.5

Step-by-step explanation:

P=2(L + M)

45=2(L + 9)

2(L + 9)=45 [Switched Sides]

(2(L + 9))/2 = 45/2

L + 9=45/2

L=(45/2)-  9

L=22 1/2 - 9

L=13 1/2

or (in decimals) 13.5