While doing dusting a maid found a button whose upper face is of black colour, as shown in the figure. The diameter of each of the smaller identical circles is 1/4 of the diameter of the larger circle whose radius is 16 cm.

Based on the above information, answer the following questions.
(i) The area of each of the smaller circle is 

(a) 40.28 cm2 (b) 46.39 cm2 (c) 50.28 cm2 (d) 52.3 cm2

(ii) The area of the larger circle is

(a) 804.57 cm2 (b) 704.57 cm2 (c) 855.57 cm2 (d) 990.57 cm2

(iii) The area of the black colour region is

(a) 600.45 cm2 (b) 603.45 cm2 (c) 610.45 cm2 (d) 623.45 cm2

(iv) The area of quadrant of a smaller circle is

(a) 11.57 cm2 (b) 13.68 cm2 (c) 12 cm2 (d) 12.57 cm2

(v) If two concentric circles are of radii 2 cm and 5 cm, then the area between them is

(a) 60 cm2 (b) 63 cm2 (c) 66 cm2 (d) 68 cm2

  • 2
What are you looking for?