Level 2
The figure shows 2 identical boxes on a weighing scale. Find the mass of 1 box.
3 m
Level 3
The diagram shows the mass of two identical boxes with objects A and B placed in them respectively.
  1. Given that object B is three times as heavy as object A, find the mass of object A.
  2. Find the mass of an empty box. Express your answer in grams.
3 m
Level 3
The figure is not drawn to scale. ∠ABC is a right angle. ∠x is twice of ∠y. Find ∠x.
3 m
Level 3
In the figure, ∠ACB = 90°. ∠ACD is 36° more than ∠BCD.
  1. What line is perpendicular to AC?
  2. Find ∠ACD.
3 m
Level 3
In the figure, BC is a straight line. ∠ADB = 90°, ∠EDF is equal to ∠FDC but 24° more than ∠ADE.
  1. What line is perpendicular to BC?
  2. Find ∠EDF.
3 m