0
The law of cosines states that in any triangle, c2 = a2 + b2 - 2abcosy, where c is the hypotenuse, a and b are the legs, and y is the angle opposite c, the hypotenuse. Since in a right triangle, this is always 90 degrees, the cosine of y will always be 0. since 2ab(0) is 0, we get the formula a2 + b2 = c2, the Pythagorean Theorem.
Add your answer:
Earn +20 pts
Who is Pythagorean Theorom?
Pyhthagoras was a guy who had a theorum!
What type of triangle proves the pythagorean theorerm?
The Pythagorean Theorem applies only to right triangles. (But they don't prove it.)
Does pythagorean theorem prove a triangle to be a right triangle?
Yes
How do you prove the hypotenuse leg theorem without using Pythagorean theorem?
I have to prove http://s5.tinypic.com/19ldma.jpg http://img22.imageshack.us/img22/9263/mathhlproofou4.jpg without using pythagorean theorem
When did James Garfield prove the pythagorean theorem?
Somewhere around 1875 and 1876
Who is Pythagorean Theorom?
Pyhthagoras was a guy who had a theorum!
Show an example of using the Pythagorean Theorom?
dddddd
What type of triangle proves the pythagorean theorerm?
The Pythagorean Theorem applies only to right triangles. (But they don't prove it.)
Does pythagorean theorem prove a triangle to be a right triangle?
Yes
What is the hypotenuse theorom?
the larges side
What was pythagras known for?
tiples and his theorom
How do you prove the hypotenuse leg theorem without using Pythagorean theorem?
I have to prove http://s5.tinypic.com/19ldma.jpg http://img22.imageshack.us/img22/9263/mathhlproofou4.jpg without using pythagorean theorem
When did James Garfield prove the pythagorean theorem?
Somewhere around 1875 and 1876
What did Pythagoras do?
Pythagoras was a teacher, but he also was the first to prove Pythagorean math correct
How do you prove the pythagorean theorem?
For any right angle triangle its hypotenuse when squared is equal to the sum of its squared sides.
What is the pythegorean theorom?
To find the answer of a triangle You do A squared+ B squared= C squared
How does the pythagorean theorem prove irrational numbers?
It does not.If you consider a right angled triangle with minor sides of length 1 unit each, then the Pythagorean theorem shows the third side (the hypotenuse) is sqrt(2) units in length. So the theorem proves that a side of such a length does exist. However, it does not prove that the answer is irrational. The same applies for some other irrational numbers.
