6. The length and breadth of a rectangle are (3a + 2) and (2a-1). Which of the following represents its perimeter? W: 2(5a - 1) B. (5a + 1) C. (5a - 1) D. 2(5a + 1)

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asked Jan 11, 2022 119k views

4 votes

6. The length and breadth of a rectangle are (3a + 2) and (2a-1).

Which of the following represents its perimeter?
W: 2(5a - 1)
B. (5a + 1)
C. (5a - 1)
D. 2(5a + 1)

Mathematics
high-school

David Pursehouse asked

by David Pursehouse

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1 Answer

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perimeter: 2l + 2w
plug in l and w
2(3a +2) + 2(2a-1)
6a + 4 + 4a - 2
10a + 2
2(5a + 1)
answer choice is 2(5a+1)

Nilsburg answered Jan 15, 2022

by Nilsburg

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