Back to MathematicsPractice this
Paper 2 & 3
Pythagoras
Higher
Square the two shorter sides then add.
Key Facts
- Only works in right-angled triangles.
- Check the hypotenuse is the longest side.
Key Equations
a^2 + b^2 = c^2
Topics Covered
Right-Angled Triangles
What you need to know
- •a^2 + b^2 = c^2
- •c is the hypotenuse.
Exam Tips
- Square root at the end.
3D Pythagoras
What you need to know
- •Use two stages for 3D lengths.
- •Draw the right triangle first.
Exam Tips
- Label the right angle clearly.
Key Terms
Hypotenuse
Longest side opposite the right angle.
Perpendicular
Meeting at 90 degrees.
Loading practice drills...
Common Exam Questions
Find the hypotenuse when the other sides are 8 and 15.
2 markseasyPaper 2
Model Answer
17
What examiners want to see
- ✓Use a^2 + b^2 = c^2.
Find the length of a diagonal in a 6 by 8 rectangle.
2 markseasyPaper 3
Model Answer
10
What examiners want to see
- ✓Apply Pythagoras to the rectangle.
Related Topics
Other topics you might find useful