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Importance of Units in Measurement

What is the a...

Question

What is the area of grass (in sq ft, marked in green) to be planted if two walkways pass a rectangular park as shown?
(All values in feet)

A

100

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B

81

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C

64

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D

50

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Solution

The correct option is C 64
The easiest way is to see that all the green parts can come together just as they are to form a square of side 8 ft.
So, area = 82 = 64 sq ft

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