**Part 1**

Do not use a calculator for the following questions.

1) Find the exact area of the following circles. Give you answer in terms of π.

a) radius of 5 cm

b) radius of 7 cm

c) diameter of 8 cm

d) diameter of 4 cm

2) Find the exact area of the following circles. Give you answer in terms of π.

3) For the following sub-questions, we are given the area of the circle. What is the radius of the circle?

a) 9π cm^{2}

b) 36π cm^{2}

c) 25π cm^{2}

d) 100π cm^{2}

4) For the following sub-questions, we are given the area of the circle. What is the diameter of the circle?

a) 16π cm^{2}

b) 64π cm^{2}

c) 25π cm^{2}

d) 81π cm^{2}

**Part 2**

You may use a calculator for the question in this part.

** **

1) Find the area of the following circles. Give your answer to 3 significant figures.

a) radius of 10 cm

b) radius of 7 cm

c) diameter of 18 cm

d) diameter of 6 cm

e) radius of 11 cm

f) diameter of 11 cm