Level 1
In the figure, AOB is a straight line and CO is perpendicular to OD. ∠DOE = 12 ° and ∠EOF = 148 °. Find ∠COF.
1 m
Level 1
In the figure, what is the value of ∠t?
2 m
Level 1
In the figure, what is the sum of ∠x and ∠y?
2 m
Level 1
In the figure, ABC is an equilateral triangle and ∠BCD = 80°. Find ∠z.
2 m
Level 1
In the figure, what is the value of ∠x?
2 m
Level 1
The figure shows an equilateral triangle. What is the value of ∠p?
2 m
Level 2
In the figure, ABC is a triangle. AD = DC, ∠BDC = 118°. Find ∠q.
2 m
Level 2
The figure is made up of ten identical isosceles triangles. O is the centre of the figure. Find ∠OJK.
2 m
Level 2
In the figure, ABCD is a parallelogram and CDEF is a rhombus. What is the value of ∠BCF?
2 m
Leve 2
The diagram is not drawn to scale. Given that RST and QSP are straight lines and QRS is an isosceles triangle, find ∠a.
2 m
Level 2
In the figure. ABDE is a parallelogram and ∠CDE = 106°. Find ∠ABC.
2 m
Level 2
TUVW is a parallelogram. TWY is a straight line. Find ∠XUT.
2 m
Level 2
In the figure, AB and CD are straight lines. ∠AOC is 54°. What is the sum of ∠a and ∠b?
3 m
Level 3
In the figure, BA // FE and BC // DE. Find
  1. ∠x
  2. ∠y
3 m
Level 3
In the figure, ABCD is a rectangle and BDE is an isosceles triangle. Given that BD = BE, ∠BED = 55° and ∠ADE = 253°, find ∠ DBC.
3 m
Level 3
In the figure, O is the centre of the circle and OABC is a rhombus. Find the value of ∠a + ∠b + ∠c + ∠d.
3 m
Level 3
In the figure, RSU is a triangle with SU = SR, while QRST is a parallelogram and TSU is a straight line. Given ∠STQ = 92°, ∠PSU = 144° and ∠QPS = 51°, find
  1. ∠SRU
  2. ∠PSR
4 m
Level 3
In the figure, O is the centre of the circle, AO is parallel to BC and ∠BOC = 100°. Find the values of
  1. ∠p
  2. ∠q
  3. ∠r
4 m