Tao Nan School P6 Math CA1 2004 (Q44)

The figure below is made up of 2 rectangles and a square. Its dimensions are given in cm.

a) Find the perimeter of the figure in terms of n.
b) Find the area of the figure in terms of n.




Solution


Q(a)

Perimeter is (n + 7) cm + n cm + 7 cm + 4 cm + n cm + (n + 4) cm = (4n + 22) cm