Measure of Central Angle

Q. Calculate the central angle for monthly expenditure of a family on different items.

1. 72°
2. 90°
3. 144°
4. 54°

Q.

Fill in the blanks :

(i) $\frac{1}{3}$ right angle $=$_____ degrees.

Q.

$x^o=\frac{\pi }{180}.x$ radian and $\text{x radian}=\frac{180}{\pi }\times x$ degree

1. True

2. False

Q.

1. $W={72}^{o}G={144}^{o}B={54}^{o}R={90}^o$
2. $W={70}^{o}G={144}^{o}B={54}^{o}R={90}^o$
3. $W={72}^{o}G={144}^{o}B={50}^{o}R={94}^o$
4. $W={72}^{o}G={144}^{o}B={54}^{o}R={92}^o$

Q.
The above pie chart shows the percentage of cars sold according to colour. If in a certain period, the total production of all cars was 95400 then how many more blue cars were sold than green?

1. 2580
2. 3618
3. 2850
4. 3816

Q. A pie diagram represents the daily usage of power in a town. A total of 50 units are consumed daily, out of which 5 units are supplied for the offices. What is the central angle for the offices sector?

1. 25 degrees
2. 30 degrees
3. 35 degress
4. 36 degrees

Q. The pie chart shows the number of fruits sold in a store. Given that the number of apples is 180 and number of oranges is 400, what is the number of pears sold in the fruit store?

1. 60
2. 70
3. 140
4. 200

Q.

If there are 5 people in the height range 170-175 cm in a class of 50 people, the percentage of people in the height range 170-175 cm is__________.

1. 5%

2. 10%

3. 15%

4. 20%