The area of square garden is A sq.feet and the perimeter is P feet. If A=2P+9, what is the perimeter of the garden, in feet?
A.28
B.36
C.40
D.56
E.64
A.28
B.36
C.40
D.56
E.64
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Simple Perimeter
Source: Beat The GMAT — Problem Solving |
Let x be side of the square.
A= x^2
P= 4x
Its given A= 2P+9
Substitute values of A and P solve the quadratic equation and solve for x.
U'll get two values of x.Take the Positive Value, which should be 9.
A= x^2
P= 4x
Its given A= 2P+9
Substitute values of A and P solve the quadratic equation and solve for x.
U'll get two values of x.Take the Positive Value, which should be 9.
