Circumference of a Circle

Q. What is difference between interior and exterior of a circle?

Q. Calculate the total length of the bus in meters.

1. $3.69m$
2. $4.54m$
3. $3.21m$
4. $4.85m$

Q. A point, whose distance from the centre of a circle is greater than its radius, lies in theof the circle.

1. interior
2. boundary
3. exterior

Q. If the length of wire required to fence a circular park is 120 m, then what is the circumference of the park?

1. 60 m
2. 120 m
3. 180 m
4. Cannot be determined

Q. Rupees coin has the smallest radius.

1. 2
2. 5
3. 10

Q. Calculate the total length of the bus in meters.

1. $3.69m$
2. $4.85m$
3. $3.21m$
4. $4.54m$

Q. One box is $30\text{cm}5\text{mm}$ tall. Another box is $20\text{cm}$ tall. How tall will the boxes be if both are placed one on top of the other?

1. $55\text{cm}$
2. $30\text{cm}5\text{mm}$
3. $50\text{cm}5\text{mm}$
4. $45\text{cm}$

Q. Choose the circle that has the largest circumference.

1. Figure 1
2. Figure 2
3. Figure 3
4. Figure 4

Q.

The diameter of a wheel of a car is $70\text{cm}$. How much distance will it cover in $50$ revolutions?

1. $350\text{m}$

2. $110\text{m}$

3. $165\text{m}$

4. $220\text{m}$

Q. Calculate the total length of the bus in meters.

1. $4.54m$
2. $3.21m$
3. $4.85m$
4. $3.69m$

Q. Three friends are sitting at points A, B, and C on a circle as shown below. If the distance of point A from the centre is 7 cm, find the distance between friends siting at point B and C.

1. 7 cm
2. 10 cm
3. 12 cm
4. 14 cm

Q. Ram starts walking on a circular path from a point and ends at the same point. The distance covered by him is the circumference of the path.

1. False
2. True

Q. Nancy cuts out three circles A, B and C and arranges them as shown in the figure below.

If the circumferences are known to be 8 cm, 4 cm and 6 cm, can you help her match the circles to its circumferences?

1. A $\to$ 6 cm, B $\to$ 4 cm, C $\to$ 8 cm
2. A $\to$ 8 cm, B $\to$ 6 cm, C $\to$ 4 cm
3. A $\to$ 8 cm, B $\to$ 4 cm, C $\to$ 6 cm
4. A $\to$ 6 cm, B $\to$ 8 cm, C $\to$ 4 cm

Q. The circumference of a circular garden is 60 m. find its diameter $(\pi =\frac{22}{7})$

Q. In a race, Deepthi and Sujata run along the inner and outer circular tracks respectively.

If they start at the same time and run at the same speeds, they'll finish the race at the same time.

1. True
2. False

Q. Raj is standing in the centre of a circular park whose radius is 90 m. If Raj walks in a straight line starting from the centre, to go out of the circular park he needs to walk ____m.

1. 18 m
2. 30 m
3. 90 m
4. 105 m

Q. If the circumference of a track is 40 cm, then match the portions of the track marked in red with its lengths.

1. 10 cm
2. 20 cm
3. 40 cm

Q. Pick the radius for each circle from the given radii based on the sizes of the given circles.
Radii = 3 cm, 7 cm, 12 cm

Q. If Ram, Sai and Arun run along the outermost, middlemost and innermost tracks of a circular field, then covers a larger distance.

1. Ram
2. Sai
3. Arun

Q. Ritwik and Richa decide to trim the green and the brown path of their backyard, respectively. If both have the same speed, which one of them can finish trimming earlier? Why?

Q. $\text{The length of the}rectangle\text{is}\frac{1}{10}\text{units}.$

1. False
2. True

Q. Three friends are sitting at points A, B, and C on a circle as shown below. The distance between friends siting at point B and C is .

1. 12 cm
2. 14 cm
3. 7 cm
4. 10 cm

Q. Ritwik and Richa decide to trim the green and the brown path of their backyard, respectively. If both have the same speed, which one of them can finish trimming earlier?

1. Rithwik
2. Richa
3. Both will take same time

Q. A point, whose distance from the centre of a circle is greater than its radius, lies in theof the circle.

1. interior
2. boundary
3. exterior

Q. $\text{The length of the}rectangle\text{is}\frac{1}{10}\text{units}.$

1. True
2. False

Q.

The diameter divides the circle into two equal parts, each part is ____.

1. Semi-circle

2. Radius

3. Circle

4. Circumference

Q. Rahul walks 7 meters in a straight line from point O. He must have ended on what part of the circle?

1. Interior
2. exterior
3. Boundary
4. Center

Q. Alex covers 50 m from centre O to point A on the boundary of the stadium. What is the minimum distance (in m) that Shalini​ should cover to reach A?​

1. 50
2. 70
3. 90
4. 100

Q. A chocolate box weighed $\frac{5}{10}$ kg. A customer decides to buy 5 such boxes. What is the total weight of the order placed by the customer?

1. $\frac{25}{50}$
2. $\frac{25}{10}$
3. $\frac{5}{50}$
4. $\frac{10}{10}$

Q. Usha and Valsamma are running a race. Usha is running on the inner circle. Valsamma is running on the outer circle.
• Valsamma runs faster than Usha. But still she loses the race. Can you guess why? __________



• Have you seen any race where runners start from different places — like in this picture? Guess why?