Changes

1)Craft teacher of a school taught the students to prepare cylindrical pen holders out of card board. In a class of strength 42, if each child prepared a pen holder of radius 5 cm and height 14 cm, how much cardboard was consumed?  

1)Craft teacher of a school taught the students to prepare cylindrical pen holders out of card board. In a class of strength 42, if each child prepared a pen holder of radius 5 cm and height 14 cm, how much cardboard was consumed?  

<ggb_applet width="800" height="562" version="4.0" ggbBase64="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" enableRightClick="false" showAlgebraInput="false" enableShiftDragZoom="true" showMenuBar="false" showToolBar="false" showToolBarHelp="true" enableLabelDrags="false" showResetIcon="true" /><br>

<ggb_applet width="800" height="562" version="4.0" ggbBase64="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" enableRightClick="false" showAlgebraInput="false" enableShiftDragZoom="true" showMenuBar="false" showToolBar="false" showToolBarHelp="true" enableLabelDrags="false" showResetIcon="true" /><br>

Statement of the problem: How much cardboard was consumed to  prepare 42 cylindrical pen holders each of radius 5 cm and height 14 cm.

Statement of the problem:<br> How much cardboard was consumed to  prepare 42 cylindrical pen holders each of radius 5 cm and height 14 cm.<br>

*Interpretation;

*Interpretation;

Case 1)Pen stand which is open on top and  closed base.

Case 1)Pen stand which is open on top and  closed base.