Surface area of cones & spheres Flashcards
1
Q
How do you find out the surface area of a cone?
A
πR² + πRl
2
Q
What is R²?
A
The base
3
Q
What is L?
A
The slant height
straight
4
Q
What is R?
A
The curved surface
5
Q
What process can you use t find out the slant height?
A
Pythagoras
a² + b² = c²
6
Q
How do you work out the surface area of a sphere?
A
4πR²
