Common Core · Grade 8
8.G.B.7
Grade 8 — Apply the Pythagorean theorem to find unknown side lengths in right triangles in two and three dimensions.
The skill that covers it
What a student should be able to do
- Find the hypotenuse given two legs.
- Find a leg given the hypotenuse and the other leg.
- Decide whether a triangle is right from its side lengths.
- Apply the theorem to ladders, diagonals and distance problems.