You may use a calculator for the questions in this quiz.

1) What is the perimeter of the following sectors. Give you answer to 2 decimal places.

1) What is the perimeter of the following sectors. Give you answer to 2 decimal places.

2)

a) Write down the formula for working out the perimeter of a sector. Let P be the perimeter,

b) Make

c) A sector had a perimeter of 28 cm and an angle of 75°. What is the radius of the sector? Give your answer to 3 significant figures.

d) A second sector has a perimeter of 89 cm and an angle of 342°. What is the radius of the sector? Give your answer to 3 significant figures.

e) Starting with your formula from part a, make θ the subject of the formula.

f) A sector has a perimeter of 39 cm and a radius of 14 cm. What is the angle in the sector? Give your answer to the nearest degree.

g) A sector has a perimeter of 103 cm and a radius of 15 cm. What is the angle in the sector? Give your answer to the nearest degree.

a) Write down the formula for working out the perimeter of a sector. Let P be the perimeter,

*r*be the radius and θ be the angle of the sector.b) Make

*r*the subject of the formula.c) A sector had a perimeter of 28 cm and an angle of 75°. What is the radius of the sector? Give your answer to 3 significant figures.

d) A second sector has a perimeter of 89 cm and an angle of 342°. What is the radius of the sector? Give your answer to 3 significant figures.

e) Starting with your formula from part a, make θ the subject of the formula.

f) A sector has a perimeter of 39 cm and a radius of 14 cm. What is the angle in the sector? Give your answer to the nearest degree.

g) A sector has a perimeter of 103 cm and a radius of 15 cm. What is the angle in the sector? Give your answer to the nearest degree.