
For given pair of quantity, check whether the first is proportional to the second. For proportional quantity, calculate the constant of proportionality.
Area and radius of circles.
Important Questions on Proportion
For given pair of quantity, check whether the first is proportional to the second. For proportional quantity, calculate the constant of proportionality.
The distance travelled and the number of rotations of a circular ring moving along a line.

For given a pair of quantity, check whether the first is proportional to the second. For proportional quantity, calculate the constant of proportionality.
The interest got in a year and the amount deposited in a scheme in which interest is compounded annually.

For given pair of quantity, check whether the first is proportional to the second. For proportional quantity, calculate the constant of proportionality.
The volume of water poured into a hollow prism and the height of the water level..

During rainfall, the volume of water falling in each square metre may be considered equal. Prove that, the volume of water falling in a region is proportional to the area of that region.

During rainfall, the volume of water falling in each square metre may be considered equal. Explain why the heights of rainwater collected in different sized hollow prisms kept near one another are equal.

When a weight is suspended by a spring, the extension is proportional to the weight. Explain how this can be used to mark weights on a spring balance.

In the angle shown below, for different points on the slanted line, as the distance from the vertex of the angle changes, the height from the horizontal line also changes.
Prove that height is proportional to the distance

In the angle shown below, for different points on the slanted line, as the distance from the vertex of the angle changes, the height from the horizontal line also changes.
Calculate the constant of proportionality for and angles.
