Question 1

Calculate the arc length of the sector.

Accepted Answer

2π  cm

Answer

4π  cm

Answer

3π  cm

Answer

π  cm

Question 2

Find the sector area.

Accepted Answer

48$\pi$

Answer

38$\pi$

Answer

8$\pi$

Answer

18$\pi$

Question 3

Find the arc length and sector area.

Accepted Answer

arc length: 12$\pi$  ,   sector area: 54$\pi$

Answer

arc length: 45$\pi$  ,   sector area: 21$\pi$

Answer

arc length: 54$\pi$  ,   sector area: 12$\pi$

Answer

arc length: 21$\pi$  ,   sector area: 45$\pi$

Question 4

Find the sector area and arc length.

Accepted Answer

arc length: 12$\pi$  ,   sector area: 48$\pi$

Answer

arc length: 21$\pi$  ,   sector area: 48$\pi$

Answer

arc length: 48$\pi$  ,   sector area: 12$\pi$

Answer

arc length: 12$\pi$  ,   sector area: 84$\pi$

Question 5

Find the radius of a sector with a central angle  $120^o$  and arc length of 6$\pi$ cm.

Accepted Answer

9 cm

Answer

10 cm

Answer

8 cm

Answer

19 cm

Question 6

Find the central angle.

Accepted Answer

160o

Answer

140o

Answer

120o

Answer

170o

Question 7

Find the radius of the sector.

Accepted Answer

10 cm

Answer

12 cm

Answer

8 cm

Answer

14 cm

Question 8

Find the central angle of a sector with arc length 4π cm and sector area of 72π $cm^2$ .

Accepted Answer

20<math>^o</math>

Answer

45<math>^o</math>

Answer

55<math>^o</math>

Answer

30<math>^o</math>

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