Grade 6Mathpractice16 questions

Circles, angles and nets

Grade 6: radius, diameter and circumference, diameter = 2 x radius, angles in a triangle add to 180 degrees, angles in a quadrilateral add to 360 degrees, nets of cubes and prisms.

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Free to play. Teams answer on one screen; your phone is the remote. No student devices.

Questions

  1. What do we call the distance all the way around a circle?

    • Area
    • Circumference
    • Diameter
    • Radius
    Show answerCircumference

  2. What is the name of a straight line from the centre of a circle to its edge?

    • Arc
    • Circumference
    • Diameter
    • Radius
    Show answerRadius

  3. The diameter of a circle passes through its centre. (True or false?)

    Show answerTrue

  4. A circle has a radius of 7 cm. What is its diameter?

    • 14 cm
    • 21 cm
    • 3.5 cm
    • 49 cm
    Show answer14 cm

  5. A circle has a diameter of 18 m. What is its radius in metres? (Answer out loud)

    Show answer9 m

  6. Two angles in a triangle are 60° and 80°. What is the third angle?

    • 140°
    • 30°
    • 40°
    • 50°
    Show answer40°

  7. A triangle can have angles of 90°, 60° and 40°. (True or false?)

    Show answerFalse

  8. A triangle has two equal angles of 45°. What is its third angle? (Answer out loud)

    Show answer90°

  9. What do the four angles in any quadrilateral add up to?

    • 180°
    • 270°
    • 360°
    • 90°
    Show answer360°

  10. A quadrilateral has angles 90°, 120° and 70°. What is the fourth angle?

    • 100°
    • 280°
    • 60°
    • 80°
    Show answer80°

  11. A rectangle has four equal angles. How many degrees is each one? (Answer out loud)

    Show answer90°

  12. Three angles of a quadrilateral are 110°, 85° and 75°. What is the fourth?

    • 100°
    • 270°
    • 80°
    • 90°
    Show answer90°

  13. How many square faces does the net of a cube have?

    • 4
    • 5
    • 6
    • 8
    Show answer6

  14. Which solid can be made by folding a net of 2 triangles and 3 rectangles?

    • Cube
    • Cuboid
    • Square pyramid
    • Triangular prism
    Show answerTriangular prism

  15. A net of a cuboid can have 6 rectangles. (True or false?)

    Show answerTrue

  16. Diameter 10 cm, circumference about 31 cm. Circumference ÷ diameter is about…?

    • About 10
    • About 2
    • About 3
    • About 5
    Show answerAbout 3

Play it as a game

High WaterAnswer right to build the class tower 2 floors higher. The sea rises every question: stay dry together!Tug of WarAnswer right to pull the rope your way. Pull it over the line to win!Lucky WheelAnswer right to spin the wheel. Win points, double your score, swap with the leader, or play again.BowlingAnswer right to roll: pick a lane and knock the pins down. A star doubles the points!

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