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Angle Types and Turns

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Angle Types and Turns

Help Kai plan turns for a playground treasure hunt. Use a right angle as your benchmark: it is a quarter turn, or the same as the corner of a square. Acute angles are smaller than a right angle; angles larger than a right angle but smaller than a half turn are a different angle type.

Spot the angle

Classify each angle. Use acute, right, obtuse or straight.

1.At the treasure map station, the two paths meet at 40°. Is this angle acute, right, obtuse or straight?

2.A gate swings open to 90°. Which angle type does the gate make?

Acute
Right
Obtuse
Straight

3.A winding path bends through 125°. Choose the best description.

Acute angle
Right angle
Obtuse angle
Straight angle

4.The path from the start to the finish forms 180°. What kind of angle is this?

Follow the turns

Imagine you are standing at the treasure marker, facing north. A clockwise turn changes which way you face.

5.Kai makes a quarter turn clockwise from north. Which direction is Kai facing?

East
South
West
North

6.Bodhi faces east and makes a half turn. Which direction is she facing now?

7.A three-quarter turn is how many degrees?

90°
180°
270°
360°

8.A toy robot faces south. It turns clockwise one quarter turn. What direction does it face?

Make a route

Think like a playground designer. Show how you know, using angle words and turns.

9.At a corner, a path changes direction by 70°. Is the turn smaller or larger than a quarter turn? Name the angle type too.

10.Draw two rays to make an angle larger than a right angle but smaller than a half turn for a new path junction. Label the angle with its correct type.

11.The last clue says: “Turn more than a half turn but less than a full turn.” Give one possible turn in degrees and say whether it is greater or less than 180°.