A semicircle is drawn on AB as diameter.

In the given figure, ABC is a right angled triangle at B. A semicircle is drawn on AB as diameter. If AB = 12 cm and BC = 5 cm, then the area of the shaded region is
(a) (60 + 18π) cm²
(b) (30 + 36π) cm²
(c) (30+18π) cm²
(d) (30 + 9π) cm²

Solution:

The perimeter of the shaded region shown in Q. 16 (above) is
(a) (30 + 6π) cm
(b) (30 + 12π) cm
(c) (18 + 12π) cm
(d) (18 + 6π) cm

Solution:

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