1 P4.AN.JM.17092803
Level 1
How many right angles can you find in the figure?
1 m
Right angle
2 P4.AN.JM.17092801
Level 1
Determine the number of right angles in the figure.
1 m
Right angle
3 P4.AN.JM.17092802
Level 1
Determine the number of right angles within each of the following figures.
1 m
Right angle
4 P4.AN.NK.23041241
Level 1
In the square grid, line JK and four points are given. One of the four given points is point L. ∠JKL is greater than 45° but smaller than 90°. Identify the point to draw line KL to complete ∠JKL.
1 m
Right angle Protractor Grid square
5 P4.AN.JM.17092815
Level 1
Khai is facing West. He makes a turn in an anti-clockwise direction and is now facing North. How many right angles does he turn?
1 m
Right angle Compass
6 P4.AN.NK.23041240
Level 1
In the figure, which angle is greater than a right angle? Give your answer in letter. (Eg a)
1 m
Ruler & set square Right angle
7 P4.AN.JM.17092808
Level 1
What degree is 35° more than a right angle?
2 m
Right angle More than or less than
8 P4.AN.JM.17092823
Level 2
How many right angles will the second hand of a clock turn through when the second hand moves through 3 complete rounds?
2 m
Right angle
9 P4.AN.JM.17092810
Level 2
In the figure, ∠ACB = ∠DCE = 90° and ∠BCE is 146°.
  1. Name a pair of perpendicular lines.
  2. Find ∠ACD.
2 m
Right angle
10 P4.AN.NK.23041226
Level 2
PQRS is a square. Find the value of ∠x.
2 m
Right angle Square
11 P4.AN.JM.17092804
Level 2
In the figure, AB is perpendicular to BC. ∠ABD is twice as large as ∠CBD. Find ∠ABD.
2 m
Right angle Model Times-as-many Units method
12 P4.AN.JM.17092874
Level 1
How many of the marked angles are less than 90°?
2 m
Estimation of an angle Right angle More than or less than
13 P4.AN.JM.17092875
Level 1
How many of the marked angles are more than 90°?
2 m
Estimation of an angle Right angle More than or less than
14 P4.AN.JM.17092829
Level 2
Through what angle has the hour hand turned from 5 p.m. to 2 a.m. next day?
2 m
Right angle Compass Time
15 P4.AN.JM.17092821
Level 2
How many right angles would a minute hand have moved if it moved from 2.30 p.m. to 3.15 p.m.?
2 m
Right angle Compass Time
16 P4.AN.JM.17092822
Level 2
Amy starts her piano class at 6 o'clock in the evening. She ends her lesson at 7 o'clock on the same evening. How many right angles will the minute hand make at the end of the lesson?
2 m
Right angle Compass Time
17 P4.ME.JM.17100369
Level 2
It is 5.15 p.m. now. If the minute hand turns through 3 right angles in the clockwise direction, what time will it be?
2 m
am pm Duration Right angle
18 P4.AN.JM.17092834
Level 2
ABCD is a rectangle. Find ∠c.
2 m
Right angle Rectangle
19 P4.AN.JM.17092835
Level 2
The figure is not drawn to scale. WXYZ is a rectangle. ∠d is 10° and ∠e is 30°. ∠f is the sum of ∠d and ∠e. Find ∠VXU.
2 m
Right angle Rectangle
20 P4.AN.JM.17092864
Level 2
The figure shows a rectangle. What is the sum of ∠a and ∠b?
2 m
Right angle Rectangle

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