# right triangle

• May 30th 2010, 05:14 AM
sri340
right triangle
The lengths of the sides of a right triangle are consecutive even integers , and the length of the shortest side is a x . which of the following equations could be used to find x ?

(A) x + x + 1 = x + 2
(B) x^2 + (x + 1)^2 = (x + 2)^2
(C) x^2 + (x + 2)^2 = (x + 4)^2
(D) x + x + 2 = x + 4
(E) x^2 = (x + 2)(x + 4)

• May 30th 2010, 05:16 AM
SpringFan25
the lengths of your sides are:
x
x+2
x+4

The hypoteneuse is the always the longest side, use pythagoras' theorum

If you are completely stuck, read the spoiler
Spoiler:

Pythagoras' theorum says $a^2 + b^2 = c^2$, where c is the hypotenuse.

Apply this as follows:
a = x
b = x+2
c = x+4

$x^2 + (x+2)^2 = (x+4)^2$
• May 30th 2010, 05:24 AM
Prove It
Quote:

Originally Posted by sri340
The lengths of the sides of a right triangle are consecutive even integers , and the length of the shortest side is a x . which of the following equations could be used to find x ?

(A) x + x + 1 = x + 2
(B) x^2 + (x + 1)^2 = (x + 2)^2
(C) x^2 + (x + 2)^2 = (x + 4)^2
(D) x + x + 2 = x + 4
(E) x^2 = (x + 2)(x + 4)

If the sides are consecutive even integers, then their lengths are

$x, x + 2, x+ 4$.

Now what is the extremely well known formula that relates three sides of a right angle triangle?
• May 30th 2010, 05:36 AM
SpringFan25
plagiarism!

j/k :P
• May 30th 2010, 06:14 AM
Prove It
Quote:

Originally Posted by SpringFan25
plagiarism!

j/k :P

If Pythagoras was still alive, he'd sue (Rofl)