This is not a right triangle, so you cannot use the Pythagorean Theorem to find r. The correct answer is Triangle B. B) Correct. This is a right triangle; when you sum the squares of the lengths of the sides, you get the square of the length of the hypotenuse. C) Incorrect.
http://www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U07_L1_T4_text_final.html
Summary. The Pythagorean Theorem states that in any right triangle, the sum of the squares of the lengths of the triangle’s legs is the same as the square of the length of the triangle’s hypotenuse. This theorem is represented by the formula.
http://www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U07_L1_T4_text_final.html
The Pythagorean Theorem can also be represented in terms of area. In any right triangle, the area of the square drawn from the hypotenuse is equal to the sum of the areas of the squares that are drawn from the two legs. You can see this illustrated below in the same 3-4-5 right triangle.
http://www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U07_L1_T4_text_final.html
In this right triangle, you are given the measurements for the hypotenuse, c, and one leg, b. The hypotenuse is always opposite the right angle and it is always the longest side of the triangle. To find the length of leg a, substitute the known values into the Pythagorean Theorem. Solve for a2.
http://www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U07_L1_T4_text_final.html
1 to find the missing length of leg or hypotenuse of a given right triangle; 2  to find the length of a diagonal of a square or rectangle; 3  to find the length of a side of a square given the diagonal; 4  to find the length of a side of a rectangle given the diagonal and the other side.
http://www.eduplace.com/math/mathsteps/7/c/
Pythagorean Triples are groups of three whole numbers that make the Pythagorean Theorem true (and therefore define a true right triangle). 3, 4, and 5 are a Pythagorean Triple. There are several ways to generate Pythagorean Triples.
http://www.eduplace.com/math/mathsteps/7/c/
The answer to the original problem is: The hypotenuse is 2 5 centimeters long or The hypotenuse is about 4.5 centimeters long. How to Simplify Inside a Radical. If a number in radical form is not a perfect square, you may be able to simplify that number by factoring.
http://www.eduplace.com/math/mathsteps/7/c/
One of the most common applications of the Pythagorean theorem is in the distance formula. To find the distance between between two points, the distance formula states: The in the formula stands for difference between, so. and. . To see how this uses the Pythagorean theorem, square both sides.
http://mathforum.org/dr.math/faq/faq.pythagorean.html
The Pythagorean theorem is used any time we have a right triangle, we know the length of two sides, and we want to find the third side. For example: I was in the furniture store the other day and saw a nice entertainment center on sale at a good price. The space for the TV set measured.
http://mathforum.org/dr.math/faq/faq.pythagorean.html
The Pythagorean (puh thag or ee un) Theorem, also called the Pythagorean Property, says that the sum of the squares of the lengths of the legs of any right triangle is equal to the square of the length of the hypotenuse,
http://www.eduplace.com/math/mathsteps/7/c/
what does the pythagorean theorem do
The Pythagorean Theorem states that in any right triangle, the area of the square drawn from the hypotenuse is equal to the sum of the areas of the squares that are drawn from the two legs.