Grade 4Mathpractice16 questions

Angles, perimeter and area

Grade 4: right, acute and obtuse angles, parallel and perpendicular lines, perimeter, area of rectangles.

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

Questions

  1. How many degrees is a right angle?

    • 100°
    • 180°
    • 45°
    • 90°
    Show answer90°

  2. Which angle is acute?

    • 120°
    • 180°
    • 60°
    • 90°
    Show answer60°

  3. Which angle is obtuse?

    • 130°
    • 45°
    • 80°
    • 90°
    Show answer130°

  4. An obtuse angle is bigger than a right angle. (True or false?)

    Show answerTrue

  5. What kind of angle is 90 degrees? (Answer out loud)

    Show answerA right angle

  6. Two lines that always stay the same distance apart are called what?

    • Acute
    • Obtuse
    • Parallel
    • Perpendicular
    Show answerParallel

  7. Perpendicular lines meet at which kind of angle?

    • A right angle
    • A straight angle
    • An acute angle
    • An obtuse angle
    Show answerA right angle

  8. Parallel lines will cross each other if you draw them long enough. (True or false?)

    Show answerFalse

  9. A rectangle is 7 cm long and 3 cm wide. What is its perimeter?

    • 10 cm
    • 14 cm
    • 20 cm
    • 21 cm
    Show answer20 cm

  10. A square has sides of 6 m. What is its perimeter?

    • 12 m
    • 18 m
    • 24 m
    • 36 m
    Show answer24 m

  11. A rectangle has a perimeter of 18 cm and is 5 cm long. How wide is it? (Answer out loud)

    Show answer4 cm

  12. A rectangle is 8 cm long and 4 cm wide. What is its area?

    • 12 square cm
    • 16 square cm
    • 24 square cm
    • 32 square cm
    Show answer32 square cm

  13. A square with a perimeter of 20 cm has an area of 25 square cm. (True or false?)

    Show answerTrue

  14. A rectangular room has an area of 40 square m and is 8 m long. How wide is it?

    • 32 m
    • 4 m
    • 5 m
    • 6 m
    Show answer5 m

  15. A garden is 9 m by 6 m. What is its area in square metres? (Answer out loud)

    Show answer54

  16. Rectangle A is 6 by 2. Rectangle B is 4 by 3. Which has the bigger area?

    • Neither, same area
    • Not enough information
    • Rectangle A
    • Rectangle B
    Show answerNeither, same area

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