Question

The given figure is net of a ______and the circumference of a circle is_____.

• A. cone
• B. $2\mathrm{\pi r}$

Answer 1

Cone:

• A cone is a solid object that has a circular base and a single vertex. It is a geometrical shape that tapers smoothly from the circular flat base to a point called the apex.
• Take a birthday cap that is conical. When you cut a slit along its slant surface, you get a net for the cone.
• Circumference of the circle or perimeter of the circle is the measurement of the boundary of the circle.
• The Circumference (or) perimeter of a circle$=2\pi R$ where, $\mathrm{R}$ is the radius of the circle,$\mathrm{\pi }$ is the mathematical constant with an approximate (up to two decimal points) value of $3.14or\frac{22}{7}$.