Eric Nicholas K's answer to Al's Primary 4 Maths Singapore question.
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Since the rectangle must fit three squares side by side, the length of each square is 12/3 = 4 m.
This means that the breadth of the rectangle must be 4 m, since we are placing one square along this breadth.
Total area of the figure
= 2 x area of square + area of rectangle
= 2 x (4 x 4) + 12 x 4
= 2 x 16 + 48
= 32 + 48
= 80 m2
This means that the breadth of the rectangle must be 4 m, since we are placing one square along this breadth.
Total area of the figure
= 2 x area of square + area of rectangle
= 2 x (4 x 4) + 12 x 4
= 2 x 16 + 48
= 32 + 48
= 80 m2
Date Posted:
4 years ago
Tnks!!!!
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