## Explanation

In geometry, the formula for calculating the surface area of a right cone is:

The Greek letter π ("pi") represents the ratio of the circumference of a circle to its diameter. In Excel, π is represented in a formula with the PI function, which returns the number 3.14159265358979, accurate to 15 digits:

```
=PI() // returns 3.14159265358979
```

To square a number in Excel, you can use the exponentiation operator (^):

```
=A1^2
```

To get the square root of a number, you can use the SQRT function:

```
=SQRT(A1)
```

Rewriting the formula for surface area of a cone with Excel's math operators, we get:

```
=PI()*B5*(B5+SQRT(C5^2+B5^2))
```

Following Excel's order of operations, exponentiation will occur before multiplication.