The image presents Question 5, which contains two parts:

1. Convert 22° to radians.
2. Convert $\frac{\pi}{10}$ radians to degrees.

Let's solve each part:

i. Convert $22^\circ$ to radians:

The formula to convert degrees to radians is: $\text{Radians} = \text{Degrees} \times \frac{\pi}{180}$ Substitute $22^\circ$ into the formula: $22^\circ \times \frac{\pi}{180} = \frac{22\pi}{180} = \frac{11\pi}{90}$ So, $22^\circ$ is $\frac{11\pi}{90}$ radians.

ii. Convert $\frac{\pi}{10}$ radians to degrees:

The formula to convert radians to degrees is: $\text{Degrees} = \text{Radians} \times \frac{180}{\pi}$ Substitute $\frac{\pi}{10}$ into the formula: $\frac{\pi}{10} \times \frac{180}{\pi} = \frac{180}{10} = 18^\circ$ So, $\frac{\pi}{10}$ radians is $18^\circ$.

Final Answers:

1. $22^\circ = \frac{11\pi}{90}$ radians.
2. $\frac{\pi}{10}$ radians = $18^\circ$.

Would you like more details or have any questions?

Here are five related questions for practice:

1. Convert $45^\circ$ to radians.
2. What is $1$ radian in degrees?
3. Convert $\frac{\pi}{6}$ radians to degrees.
4. Convert $120^\circ$ to radians.
5. How many radians are in a full circle (360°)?

Tip: Always remember that $\pi$ radians = 180°, which can help in quick conversions between degrees and radians.