# How do you find the surface area of a cone?

Table of Contents

## How do you find the surface area of a cone?

If the radius of the base of the cone is “r” and the slant height of the cone is “l”, the surface area of a cone is given as: Total Surface Area, T = πr(r + l) square units.

### What is the formula for surface area and volume of a cone?

The formula for finding the surface area of a cone is πr2+πrl. In this formula, r represents the radius of the circular base, h represents the height of the cone, l represents the slant height, and π can be approximated as 3.14. If the slant height is not given, it can be found using the formula l=√r2+h2.

#### What is flat surface area of cone?

The surface area of a cone is equal to the curved surface area plus the area of the base: π r 2 + π L r , \pi r^2 + \pi L r, πr2+πLr, where r denotes the radius of the base of the cone, and L denotes the slant height of the cone.

**How do you find the surface area of a cone without formula?**

The first step in finding the surface area of a cone is to measure the radius of the circle part of the cone. The next step is to find the area of the circle, or base. The area of a circle is 3.14 times the radius squared (πr2). Now, you will need to find the area of the cone itself.

**Is surface area a TSA or CSA?**

Curved Surface Area (CSA) – It includes the area of all the curved surfaces. Lateral Surface Area (LSA) – It includes the area of all the surface excluding the top and bottom areas. Total Surface Area (TSA) – It includes the area of all the surfaces of the object including the bases.

## How do you work out SA?

Method 1 of 7: Since there are 6 identical sides of a cube, to find the surface area, simply multiply the area of one side times 6. The formula for surface area (SA) of a cube is SA = 6a2, where a is the length of one side. The units of surface area will be some unit of length squared: in2, cm2, m2, etc.

### How do you find the surface area of a cone with diameter and slant height?

First, divide the diameter by two to get the radius, 5 inches. Then use the formula for the area of a cone with slant height, like this: A = πr(r + l) A = π * 5 * (5 + 15) = 314.16 in²

#### How do you find the surface area of a cone with only the radius?

- r = L / (π * s)
- h = √(s2 – r2)

**Where can I use CSA and TSA?**

Expert-verified answer whereas TSA means the total area of all the faces. 1. if it’s to find the area of the surface of a hollow cylinder. then u will use CSA means curved surface area.