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Find the area of a rectangular field in acers whose sides are 75 m 5 dm and 120 m.

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2.59 acres

1.5 acres

2.80 acres

2.23 acres

answer is D.

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Detailed Solution

Given a rectangular field whose sides are 75 m 5 dm and 120 m.
As we know that, 1 m = 10 dm.
So, 1 dm = 0.1 m
Therefore, 5 dm = 0.5 m
Converting 75m and 5dm into meters,

⇒ 75 + 0.5 ⇒ 75.5 m

The area of field is,

A = l e n g t h × b r e a d t h ⇒ A = 75.5 × 120 ⇒ A = 9060 m 2

As we know that,

1 m 2 = 14047 Acre

The area is acres is,

⇒ A = 90604047

⇒

A= 2.2386 acres
Therefore, the area is 2.2386 acres.
Hence, option 4 is correct.

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