Question
PSLE
The figure is made up of two rectangles ABEF and BCDE. AF = 7 cm, FE = a cm and the area of BCDE is (9 + 5a) cm2. Find the area of ACDF in terms of a. Give your answer in the simplest form.
2 m

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PSLE
The figure is made up of two rectangles ABEF and BCDE. AF = 7 cm, FE = a cm and the area of BCDE is (9 + 5a) cm2. Find the area of ACDF in terms of a. Give your answer in the simplest form.