Please solve this question 

Asked by adityaahuja099 | 4th Dec, 2017, 04:19: PM

Expert Answer:

begin mathsize 16px style Radius space of space each space semicircle equals 10 over 2 equals 5 space cm
Area space of space each space semi minus circle equals 1 half straight pi cross times 5 squared equals 1 half cross times 25 straight pi space cm squared
rightwards double arrow Area space of space two space semi minus circles equals 25 straight pi space cm squared
Area space of space shaded space region equals 100 space cm squared
Area space of space rectangle equals Area space of space 2 space semi minus circles plus Area space of space shaded space region
rightwards double arrow AD cross times CD equals 25 straight pi plus 100
rightwards double arrow 10 cross times CD equals 25 straight pi plus 100
rightwards double arrow CD equals 2.5 straight pi plus 10
Shortest space distance space between space two space semicircles
equals CD minus radius space of space each space semi minus circle
equals left parenthesis 2.5 straight pi plus 10 right parenthesis minus 5 minus 5
equals 2.5 straight pi plus 10 minus 10
equals 2.5 straight pi end style

Answered by Rashmi Khot | 5th Dec, 2017, 03:41: PM

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