Free Printable circumference and perimeter of sectors

1.

What does "circumference" mean?

a)

Space a circle takes up

b)

Distance around a circle

c)

Line from one side of a circle to another

d)

Line from center of circle to side

2.

Name the circle part shown

a)

Diameter

b)

Radius

c)

Chord

d)

Segment

3.

What is the circumference of a circle with a diameter of 56 m?

a)

175.8 m

b)

176.8 m

c)

165.8 m

d)

186.8 m

4.

What is the diameter?

a)

8

b)

16

c)

10

d)

4

5.

Name the circle part shown

a)

Diameter

b)

Chord

c)

Radius

d)

Tangent

6.

What is the circumference?

a)

48

b)

50

c)

25

d)

18

7.

Serena drew a circle with a circumference of 157 centimeters. What is the approximate diameter of the circle she drew?

a)

1.57 cm

b)

15.7 cm

c)

50 cm

d)

25 cm

8.

Find the circumference of a circle with a radius of 12.5 mm .

a)

37.68mm

b)

18.84mm

c)

78.5mm

d)

none of the above

9.

Which of the following shows the correct working out when finding the ARC LENGTH of the sector shown in the diagram?

a)

$\frac{45}{360}\times\left(2\times12\right)$

b)

$\frac{45}{360}\times\left(2\times\pi\times12\right)$

c)

$45\times2\times\pi\times12$

d)

$\frac{360}{45}\times\left(2\times\pi\times12\right)$

10.

Find the length of the arc.

a)

31.42cm

b)

15.71cm

c)

282.74cm

d)

23.56cm

11.

Work out the perimeter of the sector in $m$ .

Give your answer correct to 1 decimal place.

You do not need to type the units.

(a)

12.

Name the circle part shown in green

a)

Sector

b)

Arc

c)

Segment

d)

Radius

13.

Work out the perimeter of the sector in $cm$ .

Give your answer correct to 1 decimal place.

You do not need to type the units.

(a)

14.

What is the length L called?

a)

circumference

b)

tangent

c)

arc

d)

sector

15.

What fraction of the circle is shaded, in its simplest form?

a)

$\frac{90}{360}$

b)

$\frac{100}{360}$

c)

90

d)

$\frac{1}{4}$

16.

Find the exact circumference of the semicircle.

a)

8π + 16 cm

b)

16 π + 16 cm

c)

16 π cm

d)

8 π cm

circumference and perimeter of sectors

Total questions: 16

Worksheet time: 51mins

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