I need help with my geometry homework

Use Euler's formula to find the missing number.
Vertices : 15
Edges : 24
Faces : ?

* 9
* 10
* 11
* 12

For the surface area and Volume unit test:

1. C) 11
2. C) Hexagon
3. D) 95 cm^2;365cm^2
4. B) 859m^2;891m^2
5. B) 2,205 in^2
6. D) 790m^2
7. C) 43.1cm
8. C) LA = 1,187.5ft^2;SA=1,803.3ft^2
9. C) 541.8cm^3
10. A) 43.35 pi m^3
11. C) 2.1
12. A) 507cm^3
13. D) 850cm^3
14. D) 140cm^2
15. C) 5,575cm^3
16. C) 2,158m^2
17. C) Yes; 1:8
18. A) 196m^2
19. A) 49,009
20. A) 576cm^3
Freshman years almost done. just a few more weeks. your almost there. :))

@My name Jeff: Their answers aren't wrong. All of the test for this unit are almost all completely different. Its small changes such as changing the question up by changing one number which would give a completely different answer. Your answers would be completely incorrect as well for others since all the questions and answer choices are slightly mixed up.

Guys don't just write the letters, the answers tend to be in different positions for just about everyone (as well as being completely different questions, as well). Give the exact answer or the first few words.

Edog u wrong bruh

Euler's Formula

For any polyhedron that doesn't intersect itself, the

Number of Faces
plus the Number of Vertices (corner points)
minus the Number of Edges

always equals 2

Faces=Edges-Vertices+2
= 24-15+2=11

Took test cam back

1-C
2-B
3-b
4-c
5-b
6-c
7-b
8-c
9-b
10-d
11-c
12-b
13-c
14-a
15-b
16-b
17-a
18-a
Have fun on summer break. I failed this test ๐Ÿ˜ฌ

c a b b c c c c c a b b b d a b d a b c b c c a b

cant beleive i failed bc of a random freshman

Freshman was right for only half of my test

'i failed for this' was so wrong.. i got 7/20..

I'm sorry to hear that you didn't do as well as you had hoped. Don't feel discouraged, though. Keep studying and practicing and you'll be sure to improve. If you need any help or guidance with your studies, feel free to ask.

Is random freshmen right?

Thank you for providing the exact answers! If you need help with any other homework, feel free to ask.

Thank you for sharing your answers. If you have any questions or need further assistance, feel free to ask.

1 c, 11

2 c, hexagon
3 d, 95 cm^2 ; 275 cm^2
4 b, 951 m^2 ; 969 m^
5 c, 2,187 in^2
6 c, 1,125 m^2
7 c, 43.1 cm
8 c, la=1,187.5 ft ; sa=1,803.3 ft^2
9 c, 541.8 cm^3
10 d, 39.71pi m^3
11 c, 2.1 in
12 a, 507 cm^3
13 d, 850 cm^3
14 a, 115 cm^2
15 a, 3,054 cm^3
16 b, 3,033 m^2
17 b, yes; 1:6
18 b, 100 m^2
19 a, 49,009 m^2
20 b, 4608 cm^3

here ya go <3

Hello! Fair warning: I'm in honors geometry; therefore, my questions and answers may be different for some of you.

Question 1. 21
Question 2. Pentagon
Question 3. 384 m^2
Question 4. 896 pi in^2
Question 5. 210 in^2
Question 6. 49,009 m^2
Question 7. 2,291.5 yd^3
Question 8. 2.1 in
Question 9. 4,608 cm^3
Question 10. 6,720 cm^3
Question 11. 975.0 yd^3
Question 12. 2,158 m^2
Question 13. Yes
Question 14. 7:10
Question 15. 196 m^2
Question 16. Two-point perspective
Question 17. 31.0 cm
Question 18. a) 5,173.9 cm^3 b) 3,449.3 cm^3 c) 66.66%
Question 19. 3.75 + 15 = 18.75

To answer your question E well uhh for starters 3 is wrong and should be B - 112 cm^2; 336 cm^2 cause the answer he or she put does not exist in the question, question 5 is wrong as well and should have been D - 7,691 in^2 and again the answer he or she put does not exist, question 7 is wrong and should have been C - 83.8 (repeat of the answer doesn't exit part), 9 is wrong and should have been B - 593.9 cm^3, actually, you know what I think, I think the random freshman should have done is math right on the majority of his questions cause so far most of them are wrong. 10 is wrong and should have been D - 39.71pim^3 if he would have done his math correctly, again if he/she would have done their math right for question 11 then the answer should have been D - 3.6, *sigh (rage on the inside) 12 is wrong and should have been 528cm^3, 13 is wrong and should have been... well I have no clue on this one...sorry cause uhh I guessed, 14 should have been C - 346cm^2, 15 should have been B - 2,145cm^3 if he would have halved 16 and did the math right, 16 well I guessed again so... ya, 18 is completely wrong and should have been B - 100m^2, and finally, 20 should have been C - 19,44cm^3. A random freshman is straight up (no lie) dumb when it comes to math. He could have just used a calculator to get his answers or looked up the question for the answer like it's not that hard (even though you should not be doing that). SO...E do not beleive all of a random freshmans answers...ok.