Question

Match the solid figure to the appropriate formula.

Answer 1

1.
`L \cdot A=\pi r l` - Cone

2.
`V=(4)/(3) \pi r^(3)` - Sphere

3.
`T \cdot A=2 \pi r h+2 \pi r^(2)` - Cylinder

4.
`V=(1)/(3) B h` - Pyramid

5.
`L . A=p h` - Prism

Solution:

1.
`L \cdot A=\pi r l`

Lateral surface area of cone =
`\pi r l`

where r is the radius of the cone and l is the slant height of the cone.

2.
`V=(4)/(3) \pi r^(3)`

Volume of sphere =
`(4)/(3) \pi r^(3)`

where r is the radius of the sphere.

3.
`T \cdot A=2 \pi r h+2 \pi r^(2)`

Total surface area of cylinder =
`2 \pi r h+2 \pi r^(2)`

where r is the radius of the cylinder and h is the height of the cylinder.

4.
`V=(1)/(3) B h`

Volume of pyramid =
`(1)/(3) B h`

where B is the base area of the pyramid and h is the height of the pyramid.

5.
`L . A=p h`

Lateral surface area of prism =
`p h`

where p is the perimeter of the base and h is the height of the prism.