Question

1.) Use the formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number. The figure is not drawn to scale.

Answer 1

My answer: 795 m^2, 822m^2. Is that correct?

Answer 2

2.) Find the surface area of the cylinder to the nearest whole number. The figure is not drawn to scale.

Answer 3

my answer: 2,205 in^3. Is that correct?

Answer 4

elllloooooooooooooooooooooooo?

Answer 5

@jim_thompson5910

Answer 6

@mathstudent55

Answer 7

@e.mccormick

Answer 8

@aaronq

Answer 9

@Mertsj @jdoe0001

Answer 10

@sammixboo

Answer 11

@kropot72

Answer 12

@Elsa213

Answer 13

@ikram002p

Answer 14

@DullJackel09

Answer 15

@mathstudent55 can you stay? There has been many incidents where people have left.

Answer 16

@jim_thompson5910 If he leaves, please stay

Answer 17

For the first triangular prism you are correct.

Answer 18

Alright. Thank you.

Answer 19

For the cylinder you are correct.

Answer 20

Thank you, again. Can one of you stay for just one more to correct?

Answer 21

I'm getting the same

LSA = 3*37+9*37+9.49*37 = 795.13

TSA = BA + LSA = 2*(9*3/2) + 795.13 = 822.13

Answer 22

But for cylinder, remember the units are in.^2. You are dealing with an area, not a volume.

Answer 23

Oh right.

Answer 24

@jim_thompson5910 can you stay

Answer 25

sure

Answer 26

Okay, thank you.

Answer 27

I agree with your cylinder answer too

2*pi*13^2+2*pi*13*14 = 2,205.39804282003

Answer 28

Next question. Use Euler's formula to find the missing number.
vertices:15
edges:24
faces:?

My answer: 11. Is that correct?

Answer 29

V + F - E = 2

Answer 30

yes, you use V - E + F = 2 to find that F = 11

Answer 31

15 + F - 24 = 2
F - 9 = 2
F = 11
Correct.

Answer 32

Yay. Thank you guys again. : )

Answer 33

yw

Answer 34

You're welcome.