GCSE MATHS REVISION
NOTES
Foundation & higher | exam focused
What You Need to Know
Used to find missing sides in right-angled triangles.
Key Rules
Formula : a² + b² = c²
Rule 1: Substitute the values into the formula
Rule 2: Rearrange the equation to find the missing side length
Worked Example
A simple worked example illustrating the key concepts.
Question: a = 3, b = 4
Solution: c = √(9 + 16) = 5
NOTES
Foundation & higher | exam focused
What You Need to Know
Used to find missing sides in right-angled triangles.
Key Rules
Formula : a² + b² = c²
Rule 1: Substitute the values into the formula
Rule 2: Rearrange the equation to find the missing side length
Worked Example
A simple worked example illustrating the key concepts.
Question: a = 3, b = 4
Solution: c = √(9 + 16) = 5
