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Quiz 3 : Mathemathics Form 2 (Circle I)

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

What is A?

(a)  

2.

Is C the diameter of the circle?

a)

Yes

b)

No

3.

What does the red line represent?

(a)  

4.

What does the shaded area represent?

(a)  

5.

This is an arc length; a part of the circumference.

a)

Yes.

b)

No.

6.

This is a segment; an area bounded by an arc and a chord.

a)

Yes.

b)

No.

7.

This is an arc length; a part of the circumference. What's the formulae?

a)

Arc length =x360×2πr=\frac{x}{360}\times2\pi r

b)

Arc length =x360×πr2=\frac{x}{360}\times\pi r^2

8.

This is a sector; an area bounded by an arc and two radii.

a)

Yes.

b)

No.

9.

This is a sector; an area bounded by an arc and two radii. What's the formulae?

a)

Area of sector =x360×2πr=\frac{x}{360}\times2\pi r

b)

Area of sector =x360×πr2=\frac{x}{360}\times\pi r^2

10.

This is a chord; a straight line joining any two points on the circumference.

a)

Yes.

b)

No.

11.

This is a diameter; a straight line joining two points on the circumference and passing through the centre.

a)

Yes.

b)

No.

12.

This is a diameter; a straight line joining two points on the circumference and passing through the centre.

a)

Diameter = 2 (radius)

b)

Radius = 2 (diameter)

13.

This is a radius; a straight line from the centre to the circumference of the circle.

a)

Yes.

b)

No.

14.

This is a circumference; the perimeter of a circle.

a)

Yes.

b)

No.

15.

This is a circumference; the perimeter of a circle. What's the formulae?

a)

Circumference =2πr=2\pi r

b)

Circumference =2πd=2\pi d

16.

What's the formulae for the area of circle?

a)

Area =πr2=\pi r^2

b)

Area =2πr=2\pi r

17.

This is a diameter; a straight line joining two points on the circumference and passing through the centre.

a)

Radius =diameter2=\frac{diameter}{2}

b)

Radius =2 (diameter)=2\ \left(diameter\right)

18.

What is a chord?

a)

Centre of the circle

b)

A straight line between 2 circumference that pass through the centre

c)

Perimeter of the circle

d)

A straight line between 2 circumference that do not pass through the centre

19.

Calculate the circumference of a circle with a diameter of 2m. Use

 π=3.142\pi=3.142  . Write your answer in 2 decimal places.



(a)  

20.

Calculate the circumference of a circle with a radius of 12cm. Use

 π=227\pi=\frac{22}{7}  . Write your answe in 2 decimal places.



(a)  

21.

The formulae

 2πr2\pi r  . What does r represent?



(a)  

22.

Find a diameter of a circle with circumference 36cm. Use

 π=3.142\pi=3.142  . Write your answer in 2 decimal places.



(a)  

23.

Find a radius of a circumference of 63.5mm. Use

 π=227.\pi=\frac{22}{7}.  Write your answer in 2 decimal places.



(a)  

24.

What's the common values of  π\pi  ?

a)

 227\frac{22}{7}  

b)

 3.1423.142  

c)

 3.1433.143  

d)

 237\frac{23}{7}  

25.

Perpendicular bisectors of two chords meet at the (a)   of the circle.