SOLUTION: Darla is building a new desk. To make sure she had made a square corner, she measures 4 ft. from the corner along one edge and 9 ft. from the corner along the other edge. How long

Algebra ->  Radicals -> SOLUTION: Darla is building a new desk. To make sure she had made a square corner, she measures 4 ft. from the corner along one edge and 9 ft. from the corner along the other edge. How long       Log On


   

Question 323705: Darla is building a new desk. To make sure she had made a square corner, she measures 4 ft. from the corner along one edge and 9 ft. from the corner along the other edge. How long should the diagonal be between those two points if the corner is a right angle? Diagonal = how many feet?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Darla is building a new desk. To make sure she had made a square corner, she measures 4 ft. from the corner along one edge and 9 ft. from the corner along the other edge. How long should the diagonal be between those two points if the corner is a right angle? Diagonal = how many feet?
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Use Pythagoras:
d^2 = 4^2 + 9^2
d^2 = 36+81
d^2 = 117
d = 10.82 ft
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Cheers,
Stan H.