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Thursday 23 May 2019

Math

In these past few weeks, we have been learning to find out the area of a certain shape. These shapes are a parallelogram, rectangle, circle, square, and a trapezium. This is an example of what we did in class.



To find the area, you can duplicate the shape, rotate it and make it a parallelogram. You then now have 14 units for the base and 5 units for the height. After making a parallelogram, you then multiply the base by the height. This will be 70 units squared. You will then half it because you doubled it at the start. Finally, the answer will be 35 units squared. The formula to find the area is half base times height (1/2 B x H).

What are the main mathematical concepts or ideas that you learned or that we discussed in class?

I learnt that there are different formulas to find certain shapes. Here are some examples:

  • The formula for rectangle, square or parallelogram - Area = Length x Width
  • The formula for triangle - Area = 1/2 Base x Height
  • The formula for circle - Area = Radius squared x Pi

What new vocabulary words or terms were introduced?

Some new terms I learnt are to find a circle you must multiply radius squared by Pi.

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