Drawing a specified angle
Drawing a specified angle.
- Use the stated properties and diagram markings, rather than judging by appearance.
- Matching ticks mean equal lengths; matching arrows mean parallel lines.
- A small square marks a right angle. Keep labels horizontal and include units.
Example 1
Construct an angle of 20° from the right-pointing ray.
Place the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Example 2
Construct an angle of 25° from the right-pointing ray.
Place the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Your turn
Construct an angle of 30° from the right-pointing ray.
Check answer
Place the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 35° from the right-pointing ray.
Check answer
Place the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 40° from the right-pointing ray.
Check answer
Place the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 45° from the right-pointing ray.
Check answer
Place the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 50° from the right-pointing ray.
Check answer
Place the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 30° from the right-pointing ray.
AnswerPlace the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 35° from the right-pointing ray.
AnswerPlace the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 40° from the right-pointing ray.
AnswerPlace the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 45° from the right-pointing ray.
AnswerPlace the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.
Construct an angle of 50° from the right-pointing ray.
AnswerPlace the protractor centre on the vertex. Align 0° with the ray, mark the required value and join the vertex to the mark.