Draw an angleReflex angles
Name: Date:
Draw each reflex angle counterclockwise from BA, and mark it.
1Draw reflex angle ABC = 285°.
2Draw reflex angle ABC = 225°.
3Draw reflex angle ABC = 255°.
4Draw reflex angle ABC = 340°.
Drawing reflex angles worksheets
To draw a 285° angle with a tool that stops at 180°, you have to do a sum first. These free printable worksheets give one arm of each angle and a size above 180°, and the child draws the other arm and marks the angle.
If they get stuck
Drawing reflex angles
The answer key prints on a separate page.
What's on this sheet
The quick way is to subtract from 360°. An angle of 285° counterclockwise from BA leaves 75° on the other side, so the child measures 75° clockwise from BA, draws the arm, and then marks the long way around with an arc. The drawing is easy after that. What the child has to get right is the sum, and the side it goes on.
Why this sheet works
The side matters, and that is why the instruction names a direction. Two different drawings could both be called a 285° angle at B, turned one way or the other, and without a direction a correct child could be marked wrong. Every question on the sheet turns counterclockwise from BA, so the sheet and the key agree.
How this one works
Draw an angle
readvsset
origin on B+zero on BA
285°not75°
mark→draw→arc
- This time you set the angle yourself, starting from the ray BA.
- Origin on B, zero line along the given ray BA. If either is off, the whole angle is off.
- Count from the zero that sits on BA. The other scale would give 75° instead.
- Mark the degree, take the protractor away, and draw BC through the mark with a straightedge. Mark the angle with a small arc.