- Intro to the Pythagorean theorem
- Pythagorean theorem example
- Pythagorean theorem intro problems
- Use Pythagorean theorem to find right triangle side lengths
- Pythagorean theorem with isosceles triangle
- Use Pythagorean theorem to find isosceles triangle side lengths
- Right triangle side lengths
- Use area of squares to visualize Pythagorean theorem
Practice using the Pythagorean theorem to solve for missing side lengths on right triangles. Each question is slightly more challenging than the previous.
Find the value of
in the triangle shown below.
Want more Pythagorean theorem practice? Check out this exercise.
Want to join the conversation?
- Is there any way on how to do Pythagorean theorem easier im having trouble understanding(48 votes)
- You can remember easy "Pythagorean Triples" like the famous 3-4-5 combo, with 5 being the hypotenuse. There are also some other not-as-famous triples like the 5-12-13 triple, the 7-24-25 triple, and the 9-40-41. Note that the hypotenuse of these "triples" is always the largest number.(15 votes)
- there is so much history in the comments(42 votes)
- i wonder how we figured out the pythagoream theorem(29 votes)
- It was proven by Pythagoras. There are several popular proofs (even one done by a former US president [Garfield]). Look up proof of Pythagoras Theorem on YouTube.(10 votes)
- Just a quick question, so in a test it could say find the distance of the other 2 sides of the triangle. Can you find out the other 2 sides using the pythagorean theorem or is there another way to find that out?(15 votes)
- when am I going to use this in life?(14 votes)
- So, for the Pythagorean Theorem you do a squared plus b squared equals c squared. Why is a+c=b a thing? I don't get it.(0 votes)
- Why do people always ask obvious questions and then get a ton of votes?!(17 votes)
- how can i find the b (the one one the side thats straight)(8 votes)
- you would instead do c^2-a^2=b^2. if you are missing "a" you can also swap those and do c^2 - b^2 = a^2(6 votes)