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Units 4, 5, 6
Review 7
45
. Draw a shape with 4 sides that has 2 acute angles.
[ mark]
Fill in each blank with the correct answer. [2 marks]
1 cm
2.
1 cm
(a) The area of the above figure is cm2.
(b) The perimeter of the above figure is cm.
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 73. Draw a shape with 4 sides that has 2 right angles. [ mark]
4. Identify all the perpendicular lines in the figure below. [4 marks]
H G
F
E
D
C
B
A
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
2
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 75. Mark all the right angles in each figure. [5 marks]
(a)
(b)
(c)
(d)
(e)
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
3
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 76. 1 cm
1 cm
A
B
C
D
(a) The area of Figure A is cm2.
(b) The area of Figure B is cm2.
(c) The area of Figure C is cm2.
(d) The area of Figure D is cm2.
(e) The perimeter of Figure A is cm.
(f) The perimeter of Figure B is cm.
(g) The perimeter of Figure C is cm.
(h) The perimeter of Figure D is cm.
(i) Figure has the smallest area.
(j) Figure has the longest perimeter.
[0 marks]
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
4
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 77. Identify all the parallel lines in the figure below. [2 marks]
D
M
K
H B
//
F L
//
C J
G
E
A
8. Find the perimeter of the figure below. [ mark]
24 cm
5 cm
18 cm
14 cm
9 cm
6 cm
9. Identify two pairs of parallel lines in the figure below. [2 marks]
F
E G
D H
//
C J //
B K
A L
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
5
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 70. Draw 2 lines perpendicular to Line CD. For each line, it must pass
through at least two points on the grid. [2 marks]
D
C
. Draw a shape with 4 sides that has 2 obtuse angles. [ mark]
2. Find the area and perimeter of the figure below. [2 marks]
32 cm
8 cm
Area = cm2
Perimeter = cm
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
6
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 73. Find the area of the square. [ mark]
12 cm
Do these word problems. Show your working clearly in the space
provided.
4. The figure below is made up of four squares. Find the perimeter
of the figure. [ mark]
9 cm
5. The breadth of a lunch box is 15 cm. Its length is twice its breadth.
What is the perimeter of the lunch box? [2 marks]
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
7
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 76. The figure below shows the floor plan of a room. What is the area
of the room? [ mark]
20 m
8 m
7. Mandy bought a wrapping paper 30 cm by 15 cm. She used 80 cm2
of the wrapping paper. What was the area of the remaining wrapping
paper? [2 marks]
8. Jennifer used half of a piece of drawing paper. The remaining
drawing paper measured 14 cm by 11 cm. What was the area of
the piece of drawing paper? [2 marks]
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
8
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 79. Becky cuts a rectangle from a piece of cardboard as shown below.
What is the perimeter of the remaining cardboard? [2 marks]
13 cm
9 cm
16 cm
7 cm
25 cm
20. Noelle pasted two similar rectangular stickers on a piece of paper
as shown below. Find the perimeter of the two stickers. [ mark]
5 cm
8 cm
Learning Maths Book 3
© Singapore Asia Publishers Pte Ltd. All rights reserved.
9
Reproducible for home/classroom use only.
STRICTLY NOT FOR SALE. Review 7
