Block 1 - Volume

Question 1

Cuboid

Answer 1

V = lbh
= Length * breadth * height

Question 2

Prism

Answer 2

V = Ah
= Area * height

Question 3

Area

triangle

Answer 3

A = 1/2 bh
= 1/2 * base * height

Question 4

Cylinders

Answer 4

V = πr²h
= π * radius² * height

Question 5

Pyramid

Answer 5

V = 1/3 Ah
= 1/3 * Area * height

Question 6

Cones

Answer 6

V = 1/3 πr²h
= 1/3 * π * radius² * height

Question 7

Spheres

Answer 7

V = 4/3 πr(3)
= 4/3 * π * radius(3)

Question 8

Hemispheres

Answer 8

V = 2/3 πr²
= 2/3* π * radius²

Question 9

How do you work backwards with volumes?

Answer 9

Imagine it like ex… 3x = 9 (your trying to find x so you divide by 3 on both sides
You write the formula out and put in all the information you have for example (pyramid)
The volume is 378 and the area is 9 times 9
378 = (1/3 * 81) * h
378 = 27h
So you divide both sides by 27 to isolate the h then you flip it and you get your answer of
H = 14