Question

The surface area of a cone with radius r units and slant height s units is shown below:

Surface area = 3.14(rs + r2)

Part A: If r = 3 units and s = 5 units, write an expression that can be used to calculate the surface area of the cone. (4 points)

Part B: What is the surface area of the cone? Show your work. (6 points)

Answer 1

@Holly00d1248 @UsukiDoll @dtan5457

Answer 2

@Nnesha @robtobey

Answer 3

just substitute r and s values into the formula then solve

Answer 4

? @Nnesha

Answer 5

they gave u the formula
just replace r by 3 and s by 5 then solve

Answer 6

@robtobey

Answer 7

15?

Answer 8

nope

Answer 9

if you meant r times s =15 then yes

Answer 10

\[\huge\rm SA = 3.14(rs+r^2)\]
replace r by 3 and s by 5

Answer 11

??

Answer 12

@izthewiz7

Answer 13

what grade are you in ??
r u flvs student ?

Answer 14

connection or whatever the name of school ?
:)

Answer 15

@jdoe0001 can you help this user please ?
i gtg

Answer 16

k

Answer 17

@jdoe0001 The surface area of a cone with radius r units and slant height s units is shown below:

Surface area = 3.14(rs + r2)

Part A: If r = 3 units and s = 5 units, write an expression that can be used to calculate the surface area of the cone. (4 points)

Part B: What is the surface area of the cone? Show your work. (6 points) @jdoe0001

Answer 18

\(\large {
\textit{surface area of a cone}=\pi(rs+r^2)\quad \\ \quad \\
\begin{cases}
\pi \to &{\color{blue}{ 3.14}}\\
r\to radius\to &{\color{purple}{ 3}}\\
s\to \textit{slanted height}\to &{\color{brown}{ 5}}
\end{cases}
\\ \quad \\
{\color{blue}{ 3.14}}({\color{purple}{ r}}{\color{brown}{ s}}+{\color{purple}{ r}}^2)\implies ?
}\)

Answer 19

? @jdoe0001

Answer 20

well... tis just a matter of plugging in the values

Answer 21

sure you've done that already, many times by now