A toy is in the shape of a cylinder surmounted by a conical top of the same diameter 12 cm on both ends . The slant height of the conical part is 10cm and the height of the cylindrical part is 5 cm. Find the surface area of the toy ?
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4
Answer:
adityavarman
'off' sry.
adityavarman
got slant height by pythagoras theorem[ 12^2(height of cone)+5^2(radius of cone)= 13^2(slant height of cone). ]
umamaheswari12
ok
umamaheswari12
thank u
adityavarman
ur welcome.
manjit74
Step-by-step explanation:
Answered by
1
Step-by-step explanation:
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(52+122 )
A=770cm2
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