How do I find the surface area of a sphere with a radius of 8cm?

Answer 1

A = 4 * pi * r^2

http://www.teacherschoice.com.au/maths_library/area%20and%20sa/area_2.htm

Answer 2

find the surface area of a sphere with a radius of 8 cm

Answer 3

1) B 803.8 cm^2
2) A 452.2 m^2
3) C 267.9 ft^3
4) D 2cm
5) A 12mm
6) A 360 in^2
7) A 30 ft^3

Answer 4

"bestanswers" actually has *the best answers* (ba-dum-tish)... if you go to connexus that is. I can't guarantee this for other schools though ;w;

Answer 5

best answer has one of them wrong i got 6/7

Answer 6

1.B
2.A
3.C
4.D
5.A
6.A
7.A

Answer 7

he is right idc what anyone says I just got a 100% because of him

Answer 8

@im telling the truth, I'm pretty sure who ever rad what you said actually check too see if one of them was actually wrong XD they want %100 so bad

Answer 9

Thanks got all the answers right 100%

Answer 10

bruh im telling the truth mor e like im a jack as lier bro i just got %100 from those answers

Answer 11

BESTANSWERS IS CORRECT! 100% TRUE

Answer 12

@im telling the truth, you must've misclicked then, his answers are correct.

Answer 13

Don't trust anyone here. The answers are:
D
A
A
A
B
A
C
Those are the right answers for:
Lesson 10: Similar Solids
Essential Algebra Readiness (Pre-Algebra) B Unit 3: Measurement
Believe me if you want. I could care less. I just know that I'd be happy with someone giving me right answers (not false ones).

Answer 14

She's Wrong, She's also on brainly trolling

Answer 15

Lmao. Don't listen to Elzbieta Bosak.

Answer 16

Bestanswer is correct 100%

Answer 17

1: b
2:a
3: c
4: d
5: a
6: a
7:a

Answer 18

thebestanswer has all the correct answers for connexus

Answer 19

CORRECT!

Answer 20

bestanswer is right yay
[s] sorry if i spelled that wrong

Answer 21

ty best answers

Answer 22

DON'T LISTEN TO OTHER PEOPLE I HAVE SEEN TOO MANY WRONG ANSWERS HERE ARE THE RIGHT ONES 100% I PROMISE
B
A
C
D
A
A
A

Answer 23

bruh im confused
if i get this wrong u are in a world of truble bestanswers kid

Answer 24

heyo is right i just took the pretest this is for connexus lesson 10 unit 3

Answer 25

Bestanswers has da best answers UwU I HAVE THE POWER OF YEETUS dis works for connections academy am not sure if it work for other schools -w-

Answer 26

Beatawnsers is right and has the brst awnsers ❎🧢

Answer 27

bestanswers is 100%
1)B
2)A
3)C
4)D
5)A
6)A
7)A
Good Luck
12/2/2020
9:00 A.M.

Answer 28

thx

Answer 29

yep, its still 'bestanswers! <3

Answer 30

thank you so much @bestanswer! 100% correct

Answer 31

Lovely tip: Go for people who have the most votes, they are guarantee to have the correct answers. P.S. Thank you everybody for you wonderfully help

Answer 32

@bestanswers is 100% correct, THANK YOU!!

Answer 33

bestanswers is right, i just got a hundred :/

Answer 34

they are all right stop getting confused all of them are the same

Answer 35

100% thanks bestanswers (i think thats ur name lol)

Answer 36

Yall are funny

Answer 37

correct for gca students 2022 december 6

Answer 38

thank you so much bestanswers. They are correct as of December 11th 2022.

Answer 39

bestanswers is still correct for 2023 TCAH students.
A bit of advice for you guys, if theres an answer on this cite and they match the answers on your test 9 time outta 10 its correct

Answer 40

Can someone give an explanation for question 6? I don't want answers, i want help on how to solve it.

Answer 41

Sure, I can help @Les. So, number 6 asks you to find the surface area of another similar pyramid. What you want to do, is take the smaller pyramids surface area and put it over the larger ones. We know that it is 90 in^2, however we do not know the larger vases surface area, therefore we should use x. 90/x. The height of the pyramids are 5 and 10. We have to make those into a fraction to create a proportion. This is 5/10. but since we are finding surface area, we have to square it. So 5x5=25, 10x10=100. Our fraction will be 25/100. Now we set up the proportion. 90/x=25/100. Use cross products to get 90x100= 25 x x. 90x100= 9000. Then we have to isolate the variable. We divide both sides by 25 to isolate it. 9000/5=360. x=360. Remember to add the square root sign since it is surface area. 360 in^2.

Answer 42

Sorry, I realise I put vases. I meant the pyramids.
The math is still correct though.

Answer 43

You guys...don't put just the letters down. These "teachers" keep changing crap around. They don't teach us but they really have fun screwing us over. These are right for 2023

1) B 803.8 cm^2
2) A 452.2 m^2
3) C 267.9 ft^3
4) D 2cm
5) A 12mm
6) A 360 in^2
7) A 30 ft^3