SOLUTION: What is the area of a square with diagonals 10cm long

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Question 284016: What is the area of a square with diagonals 10cm long
Answer by checkley77(12844) About Me  (Show Source):
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a^2+a^2=10^2
2a^2=100
a^2=100/2
a^2=50
a=sqrt50
a=7.07 cm is the length of the sides of the square.
7.07^2=50 cm^2