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primary 5 | Maths | Angles & Geometry
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Bernice
Bernice

primary 5 chevron_right Maths chevron_right Angles & Geometry chevron_right Singapore

Please help

Date Posted: 6 months ago
Views: 57
J
J
6 months ago
Realise that Q + R gives you a triangle.

This triangle has the same height as the rectangle and its base is the length of the rectangle.

So, this tells you that the triangle's area is ½ of the rectangle. And therefore S+T must be also ½ the area of the rectangle since S and T occupies the rest of the rectangle
Bernice
Bernice
6 months ago
Thanks understood now. Ans will be 18/4=4.5. Area of P is 4.5
J
J
6 months ago
Yup. Well done!

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Sin Yee
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