3D Shapes: Quiz 4 - Answers
Part 1
1)
a) 226 cm3
b) 207 cm2
2)
a) 360π cm3
b) 192π cm2
3)
a) 486π cm3
b) 270π cm2
Part 2
1)
a) 10 cm
b) 112π cm2
2)
a) 5 cm
b) 90π cm2
3)
a) 2πr2 + 2πrh
b) π(2r2 + 2rh)
c) 9 cm
d) 441π cm3
4)
a) 8 cm
b) 72π cm3
You may use a calculator for all of the questions in this quiz.
Part 1
1) Below is a diagram of a cylinder.
b) What is the surface area of the cylinder? Give your answer to the nearest integer.
2) Below is a diagram of a cylinder.
b) What is the surface area of the cylinder? Give your answer in terms of π.
3) Below is a diagram of a cylinder.
b) What is the surface area of the cylinder? Give your answer in terms of π.
1) The volume of the cylinder below in terms of π is 160π cm3.
a) What is the height/ length of the cylinder?
b) What is the surface area of the cylinder in terms of π?
2) The volume of the cylinder below in terms of π is 100π cm3.
a) What is the length of the radius of the circular cross section?
b) What is the surface area of the cylinder in terms of π?
3) The surface area of the cylinder below is 224π cm2.
a) Write down the formula for working out the surface area of a cylinder.
b) Factorise out π.
c) What is the height/length of the cylinder?
d) What is the volume of the cylinder in terms of π?
4) The surface area of a cylinder below is 66π cm2.
a) Find the height/ length of the cylinder.
b) Find the volume of the cylinder in terms of π.