What is the length of side x? if necessary, round your answer to two decimal places.
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Question

What is the length of side x? if necessary, round your answer to two decimal places.
http://gyazo.com/29cc02c5b2b3695f5984129f3588922b

mathstudent55 · Answer

Since you have a right triangle, you can use the Pythagorean theorem.

$a^2 + b^2 = c^2$

where a and b are the lengths of the legs of the triangle (the two sides forming the right angle), and c is the length of the hypotenuse of the triangle (the side opposite the right angle.)

anonymous · Answer

361 + 144 = x?

anonymous · Answer

how about stop spamming this question in chat

mathstudent55 · Answer

No. It's not what you have.
Make sure the the sides whose squares you add are the legs.
One leg measures x (unknown).
One leg measures 12.
The hypotenuse measures 19.

$x^2 + 12^2 = 19^2$

Now square 12 and 19.
Then subtract the square of 12 from both sides.
Then take the square root of both sides.