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## Question

primary 5 | Maths
| Area & Volume

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= 12 x 12

= 144 cm^2

Area of left side unshaded region (that triangle with 4 cm and 12 cm)

=1/2 x 4 x 12

= 24 cm^2

Area of top right unshaded region (that triangle with 4 cm and 8 cm)

= 1/2 x 4 x 8

= 16 cm^2

Area of bottom unshaded region (that triangle with 8 cm and 12 cm)

= 1/2 x 8 x 12

= 48 cm^2

Area of shaded triangle

= 144 - 24 - 16 - 48

= 56 cm^2

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