Tamil Nadu Board Solutions for Chapter: Measurements, Exercise 2: Exercise 2.1

Find the missing values in the following table for the circle with radius $\left(r\right)$ diameter $\left(d\right)$ and Circumference $\left(C\right)$.

Find the missing values in the following table for the circle with radius $\left(r\right)$ diameter $\left(d\right)$ and Circumference $\left(C\right)$.

A wire of length $1320 \mathrm{cm}$ is made into circular frames of radius $7 \mathrm{cm}$ each. How many number of frames can be made?

A Rose garden is in the form of circle of radius $63 \mathrm{m}$. The gardener wants to fence it at the rate of $₹150$ per metre. If the cost of fencing is $₹k$, find $k$.

Formula used to find the circumference of a circle is

In the formula, $\mathrm{C}=2\mathrm{\pi r}$, '$r$' refers to

If the circumference of a circle is $82\pi ,$ if the value of $\text{'}\mathrm{r}\text{'}$ is $\mathrm{A} \mathrm{cm}$, then find the value of $A$.

Circumference of a circle is always