**Source: Complete International Mathematics For Cambridge IGCSE - David Rayner, Jim Fenson**

a) | Sphere | |

b) | Cylinder | |

c) | Cone | |

d) | Cylinder | |

e) | Sphere | |

f) | Cone | |

g) | Cylinder | |

h) | Cone | |

i) | Sphere | |

j) | Hemisphere |

2. A solid wooden cylinder of height 8 cm and radius 3 cm is standing vertically.

It is then cut in two along a vertical plane of symmetry.

Calculate the surface area of the two pieces.

Each cut piece has the following surfaces: 1. A rectangle (along the cut plane) 2. Two semi-circles(base and top) 3. Half the circular face of the cylinder. |

3. A tin of paint covers a surface area of 60 cm² and costs $4.50.

Find the cost of painting the outside surface of a hemispherical dome of radius 50 m.

(Just the curved part)

4. Find the surface area of a sphere of volume 28 cm³.

5. A golf ball has a diameter of 4.1 cm and the surface has 150 dimples of radius 2 mm.

Calculate the total surface area which is exposed to the surroundings.

(assume the dimples are hemispherical)

The golf ball can be considered a sphere. The dimples can be considered holes cut out on the surface of the sphere. In addition the surface area of the dimples have to be calculated. |

6. A cone of radius 3 cm and slant height 6 cm is cut into four identical pieces.

Calculate the total surface area of the four pieces.

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