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QUIZ

10th

grade

63%

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S.K. Batra

4 years

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18 questions

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- 1. Multiple Choice45 seconds1 pt
What is the area of sector of a circle with central angle $60\degree$

$\pi r^2$

$2\pi r$

$\frac{\pi r^2}{6}$

$\frac{\pi r^2}{2}$

- 2. Multiple Choice30 seconds1 ptSay 'TRUE' or 'FALSE'

If areas of two circles are equal, then their circumferences are also equalTRUEFALSE - 3. Multiple Choice30 seconds1 ptSay 'TRUE' or 'FALSE'

The distance traveled by a circular wheel of diameter d cm in one revolution is 2πd cmTRUEFALSE - 4. Multiple Choice30 seconds1 pt
The region bounded by two radii and corresponding arc of a circle is

A) Segment

B) Sector

C) Area

D) Perimeter

- 5. Multiple Choice30 seconds1 pt
The region bounded by chord and corresponding arc of a circle is

A) Perimeter

B) Sector

C) Area

D) Segment

- 6. Multiple Choice45 seconds1 pt
Angle of the sector is 90°then the ratio of Area of circle to area of sector is

A) 1:4

B) 1:2

C) 4:1

D) 2:3

- 7. Multiple Choice45 seconds1 pt
Area of circle is 154cm

^{2}, and Area of minor sector is 7.7cm^{2}, then calculate area of major sector of circle.A) 145 cm

^{2}B) 146.3 cm

^{2}C) 77 cm

^{2}D) 147 cm

^{2} - 8. Multiple Choice1 minute1 pt
Area of the square that can be inscribed in circle of radius 8 cm

256 sq.cm

128 sq.cm

64 sq.cm

132 sq.cm

- 9. Multiple Choice1 minute1 pt
The perimeter of square circumscribing circle of radius 'a' cm is

8a cm

6a cm

10a cm

16a cm

- 10. Multiple Choice30 seconds1 pt
The area of a segment of a circle is less than the area of its corresponding sector

True only for minor segment

True only for major segment

Alwys false

- 11. Multiple Choice30 seconds1 pt
Area of a sector with central angle $\theta$ is

$\frac{\theta}{360}\times\pi r^2$$\frac{\theta}{360}\times2\pi r$

$\frac{\theta}{360}\times\pi d$

- 12. Multiple Choice1 minute1 pt
If the perimeter and the area of a circle are numerically equal, then the radius of the circle is

A) 2 Units

B) 4 Units

C) 3 Units

D) 7 Units

- 13. Multiple Choice2 minutes1 pt
Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Express answer to the nearest tenth of a square inch.( Use Pi =3.14)

25.2 in

^{2}28.5 in

^{2}31.4 in

^{2}38.2 in

^{2} - 14. Multiple Choice1 minute1 pt
A cathedral window is built in the shape of a semicircle. If the window is to contain three stained glass sections of EQUAL SIZE, what is the area of the YELLOW SECTOR?

3.3 ft

^{2}4.5 ft

^{2}6.3 ft

^{2}7.1 ft

^{2} - 15. Multiple Choice30 seconds1 pt
The distance around a circle

area

diameter

circumference

radius

- 16. Multiple Choice2 minutes1 ptFind the arc length. Leave your answer in terms of π.7/4π7/2π1/8π45π
- 17. Multiple Choice1 minute1 pt
Area of a sector of central angle 120° of a circle is 3π cm

^{2}. Then the length of the corresponding arc of this sector is:5.8 cm

6.1 cm

6.3 cm

6.8 cm

- 18. Multiple Choice2 minutes1 pt
What is the area of the shaded region?

25π - 50

25π - 100

5π - 50

5π - 100

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