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January 25, 2015

January 25, 2015

Posted by **Steve** on Friday, October 11, 2013 at 1:58am.

side 1 side 2 side3

q 25 20 15

r 26 20 46

s 25 20 1025

t 25 26 650

I think that it is R

- Algebra -
**Swaastikaa**, Friday, October 11, 2013 at 4:04amThe answer is S.

A right angle triangle follows Theorem Phytagoras rule. The sum of squares of 2 sides = length of the 3rd side

For S, 25^2 + 20^2 = 1025

- Algebra -
**Steve**, Friday, October 11, 2013 at 4:26amNot quite. sum of squares is the square of the 3ed side.

We all know of the 3-4-5 triangle.

Scale that up by a factor of 5 and you get a 15-20-25 triangle. (q)

(s) and (t) are just way off. We know that for**any**triangle, each side is less than the sum of the other two.

- Algebra -
**Swaastikaa**, Saturday, October 12, 2013 at 11:12amSquare of the 3rd side is the hypothenuse.

If we square root 1025, we'll get 5sqrt(41).

5sqrt(41) - 20^2 = 625 = 25^2

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