Question:
The figure below is made up of 2 triangles. The ratio of the area of the small triangle to the area of the big triangle is 7 : 19. The ratio of the shaded area to the area of the small triangle is 3 : 7. The area of the unshaded part of the figure is 240 cm². Find the area of the whole figure.
Solution:
![P6 / Catholic High / 2021 / SA2 / Paper 2
– Q12 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/05/P6_SA2_2021_Catholic_High_Paper2_Q12A-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Catholic High / 2019 / SA1 / Paper 2 – Q17 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/03/P6_Catholic_2019_SA1_Paper2_Q17-Qns.jpg?resize=400%2C260&ssl=1)