Pie Chart

Feedback: Not quite! Divide the central angle for Comedy by 360°: $90 \div 360 = \frac{1}{4}$. Multiply by the total number of students: $ \frac{1}{4} \times 80 = 20$ students.

Feedback: Not quite! To find the central angle, divide the number of students who chose Cycling by the total number of students, then multiply by 360°. So: $20 \div 100 \times 360^\circ = 72^\circ$.

Feedback: Not quite! To find the central angle, divide the number of students who chose Blue by the total number of students, then multiply by 360°. The total is 50, because 15 + 20 + 10 + 5 = 50. So: $20 \div 50 \times 360^\circ = 144^\circ$.

Feedback: Not quite! To find the central angle for Strawberry, divide the number of students who chose Strawberry by the total number of students, then multiply by 360°. The total is 100, because 30 + 20 + 25 + 25 = 100. So: $25 \div 100 \times 360^\circ = 90^\circ$.

Feedback: Not quite! To find the time spent on Studying, divide the central angle for Studying by 360° to get the fraction of the day. The angle is 60°, so: $60 \div 360 = \frac{1}{6}$. Then multiply by the total hours in a day: $\frac{1}{6} \times 24 = 4$ hours. So, 4 hours are spent on Studying.

Feedback: Not quite! Divide the central angle for Basketball by 360°: $90 \div 360 = \frac{1}{4}$. Since $\frac{1}{4}$ corresponds to 60 students, the total number of students is $60 \div \frac{1}{4} = 240$. For Volleyball, its central angle is $120°$, which is $\frac{1}{3}$ of the total. Multiply the total students by $\frac{1}{3}$: $240 \times \frac{1}{3} = 80$.