Right Triangles

Right triangles have a unique relationship between the lengths of their sides, known as the Pythagorean theorem. Watch these videos and complete the interactive exercises.

Practice

Triangle side length rules - Questions

1. Could $\text{10.6 cm, 5.6 cm}$ , and $\text{4.0 cm}$ be the side lengths of a triangle?

Choose 1 answer:

(A) Yes

(B) No

2. What is the range of possible sizes for side $x$ ?

__________ $< x$ __________

3. Could $\text{10.5 cm, 8.0 cm}$ and $\text{4.0 cm}$ be the side lengths of a triangle?

Choose 1 answer:

(A) Yes

(B) No

4. What is the range of possible sizes for side $x$ ?

__________ $< x$ __________