Geometrical Aspect of Proportion

Q. Define circumference of a circle.

Q. Circumference of circle is proportional to diameter of circle where the constant of proportionality is.

1. $\pi$
2. 3.16
3. $2\pi$

Q. Question 48

Fill in the blanks to make the statement true.

Circumference 'C' of a circle can be found by multiplying diameter d with ___.

Q.

Which of the following is true?

1. The constant of proportionality in the above graph is 1.

2. The constant of proportionality in the above graph is $\frac{1}{x}$

3. $x$ and $y$ are in inverse proportion

4. The constant of proportionality in the above graph is $\frac{1}{y}$

Q. If the area of a circle is twice its circumference, then find the diameter of the circle.

Q.

Is the relationship shown in the following graph proportional?

1. Yes

2. No

Q. Perimeter and length of side of a square are

1. not related
2. in proportion
3. not in proportion

Q. The circumference a circle is 44 cm. Then its area is ______ cm^2.

1. 176
2. 182
3. 154
4. 576

Q. Find the ratio of 40 seconds to 2 minutes.

1. 2:7
2. 1:3
3. 1:5
4. 3:7

Q.

The length of a table is 2 m and its breadth is 50 cm. Find the ratio of the length of the table to its breadth.

1. 4:1

2. 2:1

3. 1:4

4. None of these