Surface Area of a Right Circular Cone

The base of a pyramid is triangle.

The flat triangular faces of a pyramid, which join at a common point called the apex.

A pyramid has a polygonal base and $5$ flat triangular faces.

The radius of the base of a conical tent is $3.5$ m and the height is $12$ m. Neglecting the thickness of the cloth wall, find the total cost of spraying disinfectants on the outer and inner walls and floor of the tent if $₹ 2.5$ is spent per square meter.

Find the difference between the entire surface and the curved surface of a cone of base radius 5 cm.

Perpendicular height of a cone is $12 \mathrm{cm}$ and its slant height is $13 \mathrm{cm}$. Find the radius of the base of cone in $\mathrm{cm}$.

The diagram shows a cone of height $24 \mathrm{cm}$ and diameter of its base is $14 \mathrm{cm}$. Its total surface area is _____ ${\mathrm{cm}}^2$.

Find the length of cloth used for making a cone of height $2$ times the base radius, which is square of $2$, if the cloth is $100\pi \mathrm{m}$ wide.

The curved surface area of a cone is $154 {\mathrm{cm}}^2$. If its radius is $x \mathrm{cm}$ and slant height is $7 \mathrm{cm}$. Find the value of $20x$.

If all lateral faces of a square pyramid is equilateral with side $6 \mathrm{cm}$, then its base perimeter is $\_\_\_\_\_$

Lateral surface area of the pyramid $=\frac{1}{2}\times$_____$\times \mathrm{slant} \mathrm{height}$.

The volume of a square pyramid is $108 {\mathrm{cm}}^3$ and its base length is $9 \mathrm{cm}$. Then, the height of the square pyramid is 

The volume of a square pyramid is $96 {\mathrm{cm}}^3$ and its base length is $6 \mathrm{cm}$. Then, the height of the square pyramid is 

The slant height of the pyramid is the perpendicular distance from the base to the vertex.

The _____ of the pyramid is the perpendicular distance from the base to the vertex.

The lateral surface area of the regular pyramid with a triangular base if each edge of the base is of $8 \mathrm{cm}$ and the slant height is $5 \mathrm{cm}$ is

The lateral surface area of a triangular pyramid is $60 {\mathrm{m}}^2$ and base length is $5 \mathrm{m}$, then its slant height is _____.

The surface area of the square pyramid which has the base length of $8 \mathrm{cm}$ and side $5 \mathrm{cm}$.

The base length of square pyramid is $20 \mathrm{m}$ and its height is $13 \mathrm{m}$. What is its slant height?

Curved surface area of a cone is $308 \mathrm{c}{\mathrm{m}}^2$ and its slant height is $14 \mathrm{c}\mathrm{m}.$ If the radius of the base is $k \mathrm{cm}$, then find the value of $k$. $\left(\mathrm{\pi }=\frac{22}{7}\right)$