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## Question

primary 5 | Maths
| Area & Volume

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What fraction of the figure is shaded?

= ½ x rectangle length x △'s vertical height

Area of 90cm² △

= ½ x rectangle length x △'s vertical height

Combined area

= 102cm² + 90cm²

= 192cm²

= ½ x rectangle length x combined vertical height of the two △

= ½ x rectangle length x rectangle breadth

(The sum of their vertical heights is equal to the breadth of the rectangle)

= ½ x area of rectangle.

Area of rectangle = 192cm² x 2

= 384cm²

Shaded area = 384cm² - 192cm² - 114cm²

= 78cm²

Fraction = 78/384

= 13/64

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