From ques 7 to ques 10.....
Plsss also write the ques no..
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length L of the rectangle =7cm
breadth of the rectangle B=10cm
area =7x10=70sq.cm
diameter of semi-circle =7cm=7/2=3.5cm
area of semi-circle A=(pir^2/2)
2 semi-circle are cut off, then
A= 2x pir^2/2
A=pir^2
A=3.142x3.5x3.5
A=38.48sq.cm
Area of the remaining part =Area of the rectangle -area of the semi-circle
=170-38.48
=131.52 sq.cm(approx)
breadth of the rectangle B=10cm
area =7x10=70sq.cm
diameter of semi-circle =7cm=7/2=3.5cm
area of semi-circle A=(pir^2/2)
2 semi-circle are cut off, then
A= 2x pir^2/2
A=pir^2
A=3.142x3.5x3.5
A=38.48sq.cm
Area of the remaining part =Area of the rectangle -area of the semi-circle
=170-38.48
=131.52 sq.cm(approx)
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