ANGLES

41 P5.AN.JM.17083219

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

Video Attempt

42 P6.AN.NK.21060928

Level 1 PSLE
ABC is a straight line and ∠BDA = ∠CDB. Find ∠ABD.

1 m

Attempt

Angles sum of triangle

43 P6.AN.NK.21060907

Level 1 PSLE
PQRS is a square and PQ = PT. Find ∠QPT.

1 m

Attempt

Square Isosceles triangle Right angle Angles sum of triangle

44 P5.AN.JM.17083223

Level 1
The figure is made up of straight lines. Find the unknown ∠y.

1 m

Attempt

Triangle Exterior angle of a triangle

45 P5.AN.JM.17083166

Level 3
In the figure, ACDF is a parallelogram, BCDE is a rhombus and BED is an equilateral triangle.

Find ∠CDB.
Given that AF = AE and ∠BAK = 50°. Find ∠EAK.

5 m

Video Attempt

Equilateral triangle Parallelogram Rhombus Alternate angles

46 P5.AN.JM.170831105

Level 3
In the figure, JKL is parallel to XYZ and the line XL cuts ∠KXZ into half. Given that LX and KY are straight lines, ∠JKX = 45°, ∠XYN = 42.5° and ∠KNL = 115°, find

∠a
∠c
∠b

5 m

Video Attempt

Vertically opposite angles Angles sum of triangle Interior angles

47 P5.AN.JM.17083167

Level 3
In the figure, ABCD and BPQR are two rhombuses. If ∠PQR = 114° and ∠ADC = 96°, calculate

∠QPR
∠QCB
∠RSC

5 m

Video Attempt

Isosceles triangle Rhombus Angles sum of triangle Exterior angle of a triangle Corresponding angles

48 P6.AN.NK.17081603

Level 1 PSLE
Find ∠x in the figure.

1 m

Video Attempt

Right angle Angles at a point

49 P6.AN.NK.17081604

Level 1 PSLE
Find ∠x in the figure.

1 m

Attempt

Right angle Angles at a point

50 P5.AN.JM.17083235

Level 1
ABCD is a parallelogram and CDE is an isosceles triangle. Find ∠ADC.

1 m

Attempt

Isosceles triangle Parallelogram Angles sum of triangle Interior angles

51 P6.AN.NK.17081605

Level 1 PSLE
In the figure, X and Y are two points on a map. Point X is north of Y. Point Z is north-west of Y and ∠YXZ = 40°. Where is Point Z?

1 m

Attempt

Compass Construction

52 P6.AN.NK.21060918

Level 2 PSLE
In the figure, BCE is an equilateral triangle, ABCD is a trapezium with AD parallel to BC. ∠DAB = 66°. Find ∠ABE.

1 m

Attempt

Equilateral triangle Trapezium Interior angles

53 P6.AN.NK.21060920

Level 2 PSLE
In the figure, ABE is an equilateral triangle and BCDE is a rhombus ∠DAB = 38°. Find ∠CBE.

1 m

Attempt

Equilateral triangle Isosceles triangle Rhombus Angles sum of triangle Interior angles

54 P5.AN.JM.17083112

Level 1
The figure shows an 8-point compass. After turning 225° clockwise, Janelle was facing Northeast (NE). Which direction was she facing at first? Give the answer in letter. (Eg N)

1 m

Attempt

Compass Working backwards

55 P5.AN.JM.17083106

Level 1
If Robert makes a 135° anti-clockwise turn, he will face South West. Where will Robert face is he makes a 270° clockwise turn from his original position? Give the answer in letter. (Eg N)