Question

I need help in math

Answer 1

what is B and P

Answer 2

is B like the area of the Base?

But what is P then?

Answer 3

i got no clue

Answer 4

i delated the screen shot of the notes

Answer 5

maybe P is meant to be like perimeter but since it's a 3 dimensional figure, we're looking for surface area

Answer 6

ooh

Answer 7

so do you know how to find the area of a circle?

Answer 8

If we're doing surface area, i wanna do that

Answer 9

I have no clue a all what to do.

Answer 10

the area of a circle is pi times radius squared
and there are two circles

and then you have to add it with the circumference times height

Answer 11

First, area of the circle
pi times r^2
do you know what radius is

Answer 12

%

Answer 13

5*

Answer 14

Yesh
So, 5 squared is....

Answer 15

25

Answer 16

Okay, so it's 25pi
But because there are two faces
What is 25 times 2

Answer 17

50

Answer 18

Okay, so the top and the bottom is 50pi
And then, we find the middle
Imagine that it is a piece of paper
So, the area of that is the circumference of the circle on top, multiplied by the height, just like a rectangle

Answer 19

The area of that is circumference times height
circumference is 2pir, what is 2 times 5

Answer 20

*two times five times pi

Answer 21

?

Answer 22

What is 2 times 5

Answer 23

10\

Answer 24

So, 10 times pi is 10pi
And then we have the height
what is the height of hte cylinder?

Answer 25

16??

Answer 26

Yes
So, what is 10 times 16

Answer 27

160??

Answer 28

Yes, so the area of the middle is 160pi
Now, we have to add them all together to get the whole surface area
What is 160+50

Answer 29

210*

Answer 30

Okay, so the surface area of the cylinder is 210pi
Assuming that B is base, we already solved that earlier, 25pi

Answer 31

okay

Answer 32

So, there's your answer
Assuming that P is surface area and B is base

Answer 33

I do what?

Answer 34

?_?
wdym

Answer 35

why u keep saying ssumeing its confusing me

Answer 36

you telling me to do somthing?

Answer 37

Okay, so you didn't' understand any of what I was talking about earlier, right?, about areas and bases and stuff?

Answer 38

No i dont

Answer 39

Do you know how to find the area and circumference of a circle?

Answer 40

A=πr^2

Answer 41

So, what is the area of the base of the cylinder

Answer 42

78.54

Answer 43

I suggest leaving it in terms of pi

Answer 44

Because ^^^ is an approximation
You don't do approximations until the end

Answer 45

So, what's the area of the base of the cylinder

Answer 46

Like, dont' multiply it by pi just yet

Answer 47

The what do i do????

Answer 48

then*

Answer 49

Radius is 5, pi r^2
Leave it in 25pi
Yea?

Answer 50

okay

Answer 51

So, there are two bases
What would be the area of both

Answer 52

This?

Answer 53

\(\color{#0cbb34}{\text{Originally Posted by}}\) @snowflake0531
Radius is 5, pi r^2
Leave it in 25pi
Yea?
\(\color{#0cbb34}{\text{End of Quote}}\)

Answer 54

So you don't actually know how it works right?
You just searched it up?

Answer 55

Yup

Answer 56

@AZ
i can't teach, help