🍎🍏🍎 Using Graph Paper to construct shape and finding the Area 🍎🍏🍎

  Welcome👦👧boys and girls to another fun Mathematics class. Today we will be going on an adventure where we will be exploring the topic " Using Graph Paper to find the area of polygons".  


 1. What is the formula to find the area of the  rectangle? 👇


   Example:

1. What is the area of the rectangle below?


         









2.What is the formula to find the area of the square? 


Example:

What is the area of the square below?



     







3.What is the formula to find the area of the triangle? 








Example of how to use the graph paper to construct shape and find their area.





   Example 1:                                                                                         


NB: Changing foot to cm

Length x Width

Length == 13cm

width = 10cm

Area= 13 x 10 = 130cm square






Example 2:


square 

Side X side

Area= 12m x 12m= 144m square 

       






Ok👦👧boys and girls let us click and watch the video clips below to give us additional information on how to use graph paper to find the area of the shapes.

Click and watch                                              Click and watch    

Ready👦👧boys and girls. It's now activities time.

Task 1:

Find the area and perimeter of the figures below.



             

     











Task 2:

1.A rectangular playfield has an area of 14 cm2. Use the grid below to sketch the playfield. Calculate the perimeter of the playfield.

What is the area of the playfield?

2.A perfectly square fish tank has an area of 16 cm2. Use the grid below to draw the fish tank.

Find the perimeter and area of the fish tank.

Each           represent 1cm2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Task 3:

Use the grid below to do the following questions.

1.       a.  A rectangular playfield has an area of 40cm2. Use the grid below to sketch the playfield.

a.       b.  Calculate the area and perimeter of the playfield.

 A c. A perfectly square fish tank has an area of 16cm2. Use the grid below to draw the fish tank. Find the perimeter and area of the fish tank.

Each              represent 1cm2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 Task 4:

Students Click and do the liveworksheet activities below.

1. Click and do the activity

2. Click and do the activity

3. Click and do the activity

4. Click and do the activity

 

 

 


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