Question
The figure is made up of three triangles, ABC, DEF and GHJ not drawn to scale. The area of triangle GHJ is seven times the area of triangle ABC. The area of triangle ABC is 15 of triangle DEF. The area of triangle ABC is 28 cm2. What is the total area of the shaded parts?
2 m

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The figure is made up of three triangles, ABC, DEF and GHJ not drawn to scale. The area of triangle GHJ is seven times the area of triangle ABC. The area of triangle ABC is 15 of triangle DEF. The area of triangle ABC is 28 cm2. What is the total area of the shaded parts?