Surface Areas and Volumes

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
The total of the new solid is the sum of the curved surface areas of each of the individual parts.

Given a right circular cone, which is sliced through by a plane parallel to its base, when the smaller conical portion is removed, the resulting solid is called a of a Right Circular Cone.

of a frustum of a cone = ⅓πh(r1²+r2²+r1r2)

of a frustum of a cone = πl(r1+r2)

of frustum of a cone = πl(r1 + r2) + π(r1²+r2²)

A cylindrical pencil sharpened at one edge is the combination of a and a .

A shuttlecock used for playing badminton has the shape of the combination of frustum of a cone and a .

A solid formed on revolving a right angled triangle about its height is right .

A surahi is the combination of a sphere and a .

During conversion of a solid from one shape to another, the volume of the new shape will .

A shuttle cock used for playing badminton has the shape of the combination of and a hemisphere.

In a right circular cone, the cross-section made by a plane parallel to the base is a .

Two cubes each with 6 cm edge are joined end to end. The surface area of the resulting cuboid is cm².

A cube of side 4 cm is cut into cubes of side 1 cm, then total surface area of all the small cubes is cm².