In the diagram above QR is the diameter of the ... - JAMB Mathematics 2006 Question

In the diagram above, |QR| is the diameter of the semicircle QR. Find the area of the figure to the nearest whole number. {\(\pi = \frac{22}{7}\)}

Area of PQRS = length x breath(7 x 10)cm² = 70

Area of semi-circle (\frac{1}{2} \pi r^2 = \frac{1}{2} \times \frac{22}{7} \times \frac{7}{2})

= 19.5cm² = 20cm²(appr.)

Area of the figure = (70 + 20)cm²

= 90cm²