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ICSE Class 9 Answered

 a rectangular sheet of paper is 22 cm and 6cm wide. circular pieces 2cm in diameter are cut from it to prepare discs. calculate the maximum number of discs that can be prepared. also find the area of the sheet
Asked by shalini | 16 Jul, 2020, 07:05: AM
answered-by-expert Expert Answer
Area space of space rectangular space sheet space equals space 22 cross times 6 equals 132 space cm squared
Area space of space circular space pieces space equals space πr squared space equals 22 over 7 cross times 1 cross times 1
Number space of space discs space that space can space be space cut space equals space fraction numerator Area space of space rectangular space sheet space over denominator Area space of space circular space pieces end fraction equals fraction numerator 22 cross times 6 over denominator 22 over 7 cross times 1 cross times 1 end fraction equals fraction numerator 22 cross times 6 cross times 7 over denominator 22 end fraction equals 42 space discs
Answered by Arun | 20 Jul, 2020, 11:23: AM
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