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ICSE Class 9 Answered

C part
question image
Asked by lovemaan5500 | 26 Feb, 2018, 06:58: AM
answered-by-expert Expert Answer
begin mathsize 16px style Area space of space shaded space region
equals Area space of space circle space with space diameter space OA plus Area space of space semi minus circle space with space diameter space CD
space space space space minus space Area space of space triangle BCD
equals straight pi open parentheses 7 over 2 close parentheses squared plus straight pi over 2 open parentheses 7 close parentheses squared minus 1 half cross times 14 cross times 7
equals 49 over 4 straight pi plus 49 over 2 straight pi minus 49
equals 49 over 2 straight pi open parentheses 1 half plus 1 close parentheses minus 49
equals 49 over 2 straight pi cross times 3 over 2 minus 49
equals 147 over 4 cross times 22 over 7 minus 49
equals fraction numerator 21 cross times 11 over denominator 2 end fraction minus 49
equals 115.5 minus 49
equals 66.5 space cm squared end style
Answered by Rashmi Khot | 26 Feb, 2018, 11:05: AM
ICSE 9 - Maths
Asked by lovemaan5500 | 26 Feb, 2018, 06:58: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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