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Well ... there are so many things around you that are made of the shape of a circle! Look around! Can see some of them??!
You may grow up to become an architect or product designer which needs the shape of a circle! That is the reason why you need to learn how to calculate the area and circumference of a circle! Just like how you were taught to find the area and perimeter of a square, rectangle and triangle in P4 & P5! :) |
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Pi can be expressed in 4 forms even though point (b), (c) and (d) are not mentioned in the video:
a) as decimal, i.e. 3.14 b) as fraction, i.e. 22/7 c) as calculator pi d) leave in terms of pi |
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Keen to know why the area of a circle is pi x radius x radius?! ;p
Watch this video to find out! |
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Have a break!
Let's hear a song about Circles, Radius, Diameter, Pi, Circumference and Area of a circle! Hope you like it! :) |