Right Angles & Turns · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Right Angles & Turns

Mathematics · Geometry · ages 7-8
Name ______________________   Date ____________

  1. Four right angles make a full turn.

    Circle one:   True   False

  2. Ben stands at the centre of a big clock with numbers marked on the floor. He faces the 6. He turns clockwise until he faces the 9. What turn did he make?

    • A quarter turn
    • A half turn
    • A full turn

  3. You test 4 corners with a right-angle checker. 2 corners fit exactly. 2 corners do not fit. How many right angles did you find?

    Answer: ______________

  4. You hold a right-angle checker up to a corner and it fits exactly. What kind of angle is it?

    • A right angle
    • Less than a right angle
    • More than a right angle

  5. You are turning clockwise to make one full turn. You have already turned 3 right angles. Which turn do you still need to reach one full turn?

    • A half turn more
    • A full turn
    • A quarter turn

  6. This corner opens up wider than a square's corner. Is it a right angle, less than a right angle, or greater than a right angle?

    • Right angle
    • Less than a right angle
    • Greater than a right angle

  7. Tom stands at the centre of a big clock with numbers marked on the floor. He faces the 3. He makes one quarter turn clockwise. Which number does he face now?

    • The 9
    • The 6
    • The 12

  8. Mia stands at the centre of a big clock with numbers marked on the floor. She faces the 12. She turns clockwise until she faces the 6. What turn did she make?

    • A half turn
    • A quarter turn
    • A full turn

  9. Sam puts the point of his right-angle checker on a corner and aligns one edge with one side. The other edge leaves a gap. What does that tell him?

    • The corner is exactly a right angle
    • The corner is not a right angle
    • The checker is broken

  10. Leo turns 2 right angles. Maya makes a half turn. Who turns more?

    • Leo turns more
    • Maya turns more
    • They turn the same amount
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Answer key

For grown-ups. Fold this page away before handing over the rest.

Right Angles & Turns W1-mt_MFfYcnv6Tv-s1

  1. True · Yes. Four right angles bring you all the way around to face the same way again. That is a full turn.
  2. A quarter turn · Turning clockwise from the 6 to the 9 is a quarter turn, the same size of turn as from the 12 to the 3.
  3. 2 · Only the exact fits count as right angles. 2 corners fit exactly, so you found 2 right angles.
  4. A right angle · When the checker fits exactly with no gap, the corner is a right angle.
  5. A quarter turn · A full turn is 4 right angles. You have turned 3, so you need 1 more right angle, which is a quarter turn.
  6. Greater than a right angle · A corner that opens wider than a square's corner is greater than a right angle.
  7. The 6 · One quarter turn clockwise from the 3 lands on the 6.
  8. A half turn · From the 12 to the 6 is two quarter turns, and two quarter turns make a half turn.
  9. The corner is not a right angle · With the checker point on the corner and one edge aligned, a gap on the other side means the corner is not a right angle.
  10. They turn the same amount · A half turn is exactly 2 right angles, so Leo and Maya turn the same amount.
Worksheet · LightMySky