Right Triangle or Not?

Front

Is this triangle a right triangle?

Back

Yes, a right triangle has one angle that measures 90 degrees.

Front

If three sides of a right triangle are 9, 40, and 41, which side is the hypotenuse?

Back

The hypotenuse is the longest side, which is 41.

Front

What is the longest side of a right triangle called?

Back

The longest side is called the hypotenuse.

Front

Given the 3 lengths of a triangle are 6 in, 8 in and 10 in. Will this make a right triangle?

Back

Yes, this is a right triangle because 6² + 8² = 10².

Front

What is the formula for Pythagorean theorem?

Back

The formula is a² + b² = c², where c is the hypotenuse.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90 degrees.

Front

How can you determine if a triangle is a right triangle using side lengths?

Back

Use the Pythagorean theorem: if a² + b² = c², then it is a right triangle.

Front

What are the legs of a right triangle?

Back

The legs are the two shorter sides that form the right angle.

Front

What is the relationship between the sides of a right triangle?

Back

The square of the hypotenuse is equal to the sum of the squares of the other two sides.

Front

Can a triangle with sides 5, 12, and 13 be a right triangle?

Back

Yes, because 5² + 12² = 13².