Surface area of cones & spheres Flashcards Preview

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Flashcards in Surface area of cones & spheres Deck (6)
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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