Unit 5 volume and surface area Flashcards
1
Q
what does surface area mean?
A
the area of all the outside shapes of the prism
2
Q
how do you find surface area?
A
- identify all exterior simple shapes
- find the area of each identifies shape
- add all calculated areas together
3
Q
how do u calculate the volume of a pyramid? 🔺
A
is always 1/3 the volume of its corresponding prism
SA= Bh
➗
3
4
Q
how do u calculate s
A
s= ⬛️root
h▪️
+
r▪️
5
Q
what is a cylinder
A
a circle based prism
V=Pi r▪️h
SA= 2 Pi r▪️+ 2 Pi r h
6
Q
what is a cone
A
a circle based pyramid
V= Bh
➗
3
SA= Pi r s + Pi r▪️
7
Q
what are composite figures
A
a shape made up of 2 or more figures
8
Q
what is the volume for any prism?
A
area of the base x height
V=Bh
B= area of the base