SOLUTION: A 31-inch-square TV is on sale at the local electronics store. If 31 inches measure of the diagonal of the screen, use the Pythagorem to find the legnth of the side of the screen.

Question 252392: A 31-inch-square TV is on sale at the local electronics store. If 31 inches measure of the diagonal of the screen, use the Pythagorem to find the legnth of the side of the screen.
Found 2 solutions by richwmiller, edjones:
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a^2+b^2=c^2
where a=b and c=31
2a^2=31^2
2a^2=961
a=31/sqrt(2)=21.9203

Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
Let a=one of the sides
2a^2=31^2 Pythagoras
a^2=961/2=480.5
a=21.92"
.
Ed
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