The length of a rectangle is 6 cm and it's width is 4 cm.If the length is increased by 2 cm,what should be the width of the new rectangle that has the same area as the first one.
A: 6
B: 8
C: 3
D: 24
We first get the area of the first rectangle given the length and the width
length = 6 cm
width = 4 cm
area = length * width
area = 6 * 4
Area of first rectangle = 24 cm²
if the length is increased by 2cm the new length becomes 6 + 2 = 8 cm
if the area of the two rectangles are the same ,we use the area to find the width of the new rectangle
Area = length * width
A = 8cm * w
24 = 8w
w = (24/8)
width = 3 cm
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