Questions on Algebra: Square root, cubic root, N-th root answered by real tutors!

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Question 154934: A support for a roof truss is 2√5 feet long.
Which of the following is the same measurement?
A.5√2 feet
B.√10 feet
C.V20 feet
D.10 feet

: A support for a roof truss is 2√5 feet long.
Which of the following is the same measurement?
A.5√2 feet
B.√10 feet
C.V20 feet
D.10 feet


Answer by stanbon(18787) About Me  (Show Source):
You can put this solution on YOUR website!
A support for a roof truss is 2√5 feet long.
Which of the following is the same measurement?
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2sqrt(5) = sqrt(4*5) = sqrt(20)
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Cheers,
Stan H.