JordanInTheHouse JordanInTheHouse

17-05-2021
Mathematics

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What is the nearest perimeter of rectangle ABCD, to the nearest tenth?

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mhraza2003 mhraza2003

17-05-2021

Answer: B

Step-by-step explanation:

Perimeter = 2(length+width)

'CD' = 20×cos(30) = 17.3205

width 'AD' = 20×cos(60) = 10

Perimeter = 2(17.3205+10)

= 2(27.3205)

= 54.641 =54.6

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