A) 12.9cm
B) 14.2cm
C) 15.4cm
D) 16.38cm
Correct Answer: D
Solution :
Similarly, Perimeter of the region having pink colour = 2(10 - 6) + length of arc having radius 6 cm + length of arc having radius 10 cm. \[=8+\frac{30{}^\circ }{360{}^\circ }\times 2\times \frac{22}{7}\times 6+\frac{30{}^\circ }{360{}^\circ }\times 2\times \frac{22}{7}\times 10\] \[=8+\frac{7920}{2520}+\frac{13200}{2520}\] \[=8+3.142+5.238\] \[=16.38\,\,cm\]You need to login to perform this action.
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