draw rectangle with length and breadth 9cm and 5 CM respectively. now draw second rectangle with same area but the length of rectangle should be 15 CM. now observe and write your observation. now next time take new length 45 cm and find what should be breath if area of rectangle remain same.
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Height of the cylindrical part =13cm
Radius of cone , cylinder and hemi sphere=5cm
r=5cm for hemisphere cylinder and cone.
Height of cone h=30−5−13=12
The area of canvas required=Surface area of hemishphere,cylinder and cone parts of tent
A=2πr
2+2πrH+πr( h2 +r2 )A=2π×5×5+2π×5×13+π×5( 5 2 +122 ) A=770cm2
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