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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.

Express: i. 22° in radians. ii. π/10 radians in degrees.

Learn how to convert 22 degrees to radians and π/10 radians to degrees. This problem covers key trigonometric concepts, including conversion formulas between degrees and radians. Suitable for students in Grades 9-11.

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