Ensure all output is in plain, easy-to-understand English.
system
Can you explain Pythagoras theorem to me in a simple and easy to understand way?
user
Sure, I'd be happy to!

Pythagoras' theorem is a fundamental rule in geometry that we use to find the length of a side in a right triangle. A right triangle is a triangle where one of the angles is a right angle (90 degrees).

This theorem is named after the ancient Greek mathematician Pythagoras. It states that in a right triangle, the square of the length of the longest side (called the hypotenuse) is equal to the sum of the squares of the lengths of the other two sides.

If we name the hypotenuse 'c' and the other two sides 'a' and 'b', the theorem can be written as:

a² + b² = c²

So, if you know the lengths of any two sides, you can use this formula to find the length of the third side.
assistant
Can you give me an example of how to use this theorem to find the length of a side in a right triangle?
user
Absolutely! Let's say you have a right triangle, and you know that one side (let's call this side 'a') is 3 units long, and the hypotenuse (side 'c') is 5 units long. You want to find the length of the other side (side 'b').

We can use Pythagoras' theorem to set up this equation:

a² + b² = c²

Substitute the known lengths into the equation, and we get:

3² + b² = 5²

This simplifies to:

9 + b² = 25

Subtract 9 from both sides to solve for b²:

b² = 25 - 9

b² = 16

Finally, to find the length of side 'b', we take the square root of 16, which is 4. 

So, side 'b' is 4 units long.
assistant
Can you give me another example where I need to find the length of the hypotenuse instead?
user
Sure thing! Let's say you have a right triangle, and you know that one side (let's call this side 'a') is 4 units long, and the other side (side 'b') is 3 units long. You want to find the length of the hypotenuse (side 'c').

Using Pythagoras' theorem, we can set up this equation:

a² + b² = c²

Substitute the known lengths into the equation:

4² + 3² = c²

This simplifies to:

16 + 9 = c²

which further simplifies to:

25 = c²

Finally, to find the length of side 'c', we take the square root of 25, which is 5. 

So, the hypotenuse 'c' is 5 units long.
assistant