OOOHHHH SSNNNAAAPPP!!!!Originally Posted by Cless
Thanks guys!
Just one more thing though. SRL, The answer you gave me for question 2 really helped me understand what to do, so thank you. However, for question 1, the answer sheet says "20(square root)(13)cm". Although, your answer must be correct because you really seem to know what you're doing. Is this merely another way of writing the answer? Or do you think it is just a mistake on the sheet?
I was doing that a little fast, good eye. I said a=52. I was wrong, I missed a step.
(2a)^2 + (3a)^2 = 26^2
4a^2 + 9a^2 = 676
13a^2 = 676
a^2=52
a=(square root)(52)=2(square root)(13).
So the sides are 4(square root)(13)cm and 6(square root)(13)cm, which means the perimeter is 20(square root)(13)cm.
A lesson to all, always double check your math work. In hindsight, I wonder if there exists a rectangle with sides of 104cm and 156cm and a diagonal of 26cm.Sorry
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