Page 5 - NUMINO Challenge_A2
P. 5
How to Use This Book
1. Perimeter of Connected Shapes
Perimeter of a Figure
The length of the boundary of a figure is called the perimeter.
5
3
Perimeter of the Triangle 3 4 5
4
Investigate Find the perimeter of each figure below and fill in the blanks.
In a Nutshell
1 6
12
2
Perimeter of Figures
Look at the grid below. The number on each square in the grid
indicates the number of bold lines that surround the square. Look at
the grid below to learn how to find the perimeter of a figure.
223 3 2 2 3 10 10
333 336 6
Perimeter of Connected Shapes
Find the perimeter of each figure below and fill in the blanks. Count the number of sides of a figure. When you count, mark
a starting point to make sure that each side is counted only
once.
Starting point 1 2 3 4
10 12 5
11 76
2332 10 8 Perimeter 12
2
3 9
Find the perimeter of the figure below.
3113 Perimeter 3 1 1 3 2 2 12
22
8 NUMINO Challenge A2 9Measurement
Investigate
This is where you first encounter Creative Math !!
Investigate reconstructs creative and logical thinking skills needed to solve problems into easy,
interesting activities,ininoorrddeerrttoohheellppyyoouuggrraasspptthheepprrininccipiplleeoofftthheeddaayysslleessssoonn..
Once you are done with the activities, go through In a Nutshell where main concepts for different
question types and related problem-solving strategies are discussed.
Type Study Perimeter of Connected Shapes Problem solving Key Points
Six small squares, each with sides of 2 cm, are connected to make
the figure as shown below. Find the perimeter of the figure. 1 Find the perimeter of each figure below. Each Think about how
square in the grid has sides of 1 cm. you found the
1 Find the sum of the length of the blue lines. perimeter of
connected shapes.
2 Find the sum of the length of the red lines.
2 In the following figure, each triangle and square has First, find the sum
3 What is the perimeter of the figure? a side of 2 cm. What is the perimeter of the figure? of the length of the
blue lines.
10 NUMINO Challenge A2
11Measurement
Type Study
This section introduces the main question type for a theme.
Since you would be encountering with a question type for the first time, you may find it unfamiliar and
difficult. As you work step by step, however, you will be able to take a closer step to solving a problem.
Work on problems with the kind help of Key Points. You will feel that creativity has enhanced within
you in no time!
1. Perimeter of Connected Shapes
Perimeter of a Figure
The length of the boundary of a figure is called the perimeter.
5
3
Perimeter of the Triangle 3 4 5
4
Investigate Find the perimeter of each figure below and fill in the blanks.
In a Nutshell
1 6
12
2
Perimeter of Figures
Look at the grid below. The number on each square in the grid
indicates the number of bold lines that surround the square. Look at
the grid below to learn how to find the perimeter of a figure.
223 3 2 2 3 10 10
333 336 6
Perimeter of Connected Shapes
Find the perimeter of each figure below and fill in the blanks. Count the number of sides of a figure. When you count, mark
a starting point to make sure that each side is counted only
once.
Starting point 1 2 3 4
10 12 5
11 76
2332 10 8 Perimeter 12
2
3 9
Find the perimeter of the figure below.
3113 Perimeter 3 1 1 3 2 2 12
22
8 NUMINO Challenge A2 9Measurement
Investigate
This is where you first encounter Creative Math !!
Investigate reconstructs creative and logical thinking skills needed to solve problems into easy,
interesting activities,ininoorrddeerrttoohheellppyyoouuggrraasspptthheepprrininccipiplleeoofftthheeddaayysslleessssoonn..
Once you are done with the activities, go through In a Nutshell where main concepts for different
question types and related problem-solving strategies are discussed.
Type Study Perimeter of Connected Shapes Problem solving Key Points
Six small squares, each with sides of 2 cm, are connected to make
the figure as shown below. Find the perimeter of the figure. 1 Find the perimeter of each figure below. Each Think about how
square in the grid has sides of 1 cm. you found the
1 Find the sum of the length of the blue lines. perimeter of
connected shapes.
2 Find the sum of the length of the red lines.
2 In the following figure, each triangle and square has First, find the sum
3 What is the perimeter of the figure? a side of 2 cm. What is the perimeter of the figure? of the length of the
blue lines.
10 NUMINO Challenge A2
11Measurement
Type Study
This section introduces the main question type for a theme.
Since you would be encountering with a question type for the first time, you may find it unfamiliar and
difficult. As you work step by step, however, you will be able to take a closer step to solving a problem.
Work on problems with the kind help of Key Points. You will feel that creativity has enhanced within
you in no time!
