Answer:
The perimeter is (6+10b) and the area of the garden is (3b+4b²).
Step-by-step explanation:
Let l be the length and b be the width of the rectangle.
According to the question,
The length of a rectangular garden is three feet more than four times the width i.e.
l = 3+4b
The perimeter of a rectangle is given by :
P = 2(l+b)
Substitute all the values,
P = 2(3+4b+b)
P = 2(3+5b)
P = 6+10b
The area of a rectangle is given by :
A = lb
Substitute all the values,
A = (3+4b)b
A = 3b+4b²
So, the perimeter is (6+10b) and the area of the garden is (3b+4b²).
