The length of a rectangle is 6 cm , and its perimeter is 16 cm. What is the area of the rectangle is square centimeters ?
A
12
B
16
C
18
D
24
Correct Answer: 12
We know, 2(length + width) = perimeter or, 2×6 + 2×width = 16 or, 2×width = 16 - 12 or, width = 4/2 = 2 cm So, area of the rectangle = 6×2 = 12 cm2