# 2021 PSLE Maths Question - Area & Perimeter Heuristics

In this series, we examine past year PSLE Mathematics questions and sieve out challenging and interesting questions and explore ways of solving them.

2021 PSLE Mathematics Paper 2

Question 12

The figure is made up of three rectangles. A straight line drawn across the rectangles, divides the figure into two parts: shaded and unshaded.

(a) The perimeter of the shaded part is 4 cm longer than the perimeter of the unshaded part. What is the length of AB?

(b)What is the area of the shaded part?

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