SOLUTION: The painting was 18 x 42 inches. What was the width from one corner to the next creating a diagonal line? (in a triangle)

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Question 1026331: The painting was 18 x 42 inches. What was the width from one corner to the next creating a diagonal line? (in a triangle)
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Consider the height, the width
and the diagonal are a right
angled triangle.
Height^2 + width^2 = diagonal^2
42^2 + 18^2 = diagonal^2
1764 + 324 = diagonal^2
2088 = diagonal^2
Diagonal = √2088
Diagonal = 45.69 inches (2 decimal places)
Hope this helps :-)