The perimeter of the shaded region is

The given figure shows a rectangle and a semicircle. The perimeter of the shaded region is
(a) 70 cm
(b) 56 cm
(c) 78 cm
(d) 46 cm

Solution:

The area of the shaded region 
(a) 140 cm²
(b) 77 cm²
(c) 294 cm²
(d) 217 cm²

Solution:

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