Question

A tennis player has 6 balls with a diameter of 6 cm. Find the volume of all 6 balls. ??

Answer 1

volume of a sphere (in this case one ball) = 4/3 πr^3
radius of a ball = diameter/2 = 6/2=3
can you do it now ?

Answer 2

im not sure can you write the formula again? because that is confusing

Answer 3

???

Answer 4

@amriju help me please

Answer 5

@amriju ??

Answer 6

@xapproachesinfinity

Answer 7

A tennis player has 6 balls with a diameter of 6 cm. Find the volume of all 6 balls.

Answer 8

hey i am so sorry..my laptop was on...i was else where

Answer 9

ok..so we are dealing with volume of spheres..so what is the volume of one sphere? do you know?

Answer 10

no

Answer 11

ok you know what is radius of a sphere, right?

Answer 12

isnt that like the middle

Answer 13

the middle is the center. RAdius is the distance of the center from like the sphere's outline...you understand?

Answer 14

yes

Answer 15

so the volume of 1 sphere is 4*pi*(radius)^3/3...radius^3 means radius to the power 3..you know what is pi?

Answer 16

yes 3.14

Answer 17

correctomundo..so can you find the volume of 1 sphere?

Answer 18

but i dont have the radius

Answer 19

yes..so here comes the diameter...you know what that is? its double of radius..so can you find the radius now?

Answer 20

so 12

Answer 21

my friend, diameter is double of radius..so radius is half of diametre

Answer 22

hey..

Answer 23

oh so 3

Answer 24

yupp..:)..you got it..now go for the volume soldier

Answer 25

110.214 ?

Answer 26

are you sure?calculate once more

Answer 27

339.12

Answer 28

baby..you forgot to divide by 3 :(

Answer 29

oh..sorry for that word...mistake of mine

Answer 30

can you rewrite the formula

Answer 31

4*pi*(radius)^3/3

Answer 32

113.04

Answer 33

yippie..so u have the volume of 1 sphere...so the volume of 6 spheres will be?

Answer 34

678.24

Answer 35

hoorah....:)

Answer 36

can you help me with 3 more please

Answer 37

as long as I get a medal..;)

Answer 38

Baseballs have a radius of 9 cm. Find the volume of 5 balls.

Answer 39

hey...thats cheating..the last problem was harder than this..give atry..tell me how to do it..

Answer 40

hello...

Answer 41

im thhinking

Answer 42

hey you did the last one..

Answer 43

did you find a way?

Answer 44

188.4

Answer 45

i tried and bet its still wrong

Answer 46

did you find any answer..if you did..tell me..

Answer 47

you dont want to post it here..msg me

Answer 48

188.4

Answer 49

ok what did you do?

Answer 50

well 4x 3.14 x 27/9

Answer 51

37.68

Answer 52

why did you do 27/9?...the formula is 4*pi*(radius)^3/3

Answer 53

heyyyyyy

Answer 54

i got 3,052.08 ???

Answer 55

yo..so find for 5 spheres...

Answer 56

what thats right?

Answer 57

yes dearie..:)..see you can do it

Answer 58

but its going to give me a really big number, i dont think it'll be right

Answer 59

come on, trust me..

Answer 60

15260.4

Answer 61

which is correct...

Answer 62

u dont believe me..ask any body else...

Answer 63

ok so the next questions?

Answer 64

wait a minute

Answer 65

ok

Answer 66

so volume of the shaded region once again, huh..? :)

Answer 67

yesss

Answer 68

if i tell u that the volume of the shaded region is volume of the larger sphere-volume of the smaller sphere, would you mind?

Answer 69

what do you mean

Answer 70

look at the picture...the larger sphere is made of the shaded part and the smaller sphere, right?

Answer 71

oh yes

Answer 72

so if you would subtract the volume of the smaller sphere from the larger one, what would you be left with?

Answer 73

6

Answer 74

no no thats not what i meant..would you not be left with the volume of d shaded part?

Answer 75

oooh yes

Answer 76

are you clear over here..shall i proceed?

Answer 77

yes

Answer 78

ok then..so why dont you find the volume of the larger and smaller sphere?

Answer 79

but how? with the same formula ive used or what

Answer 80

obviously..when you are dealing with volume of a sphere, thats the formula u use

Answer 81

4x 3.14 x what?

Answer 82

radius^3/3

Answer 83

but the radius?

Answer 84

you got the diameter..remember what i told u?

Answer 85

oh twice of the diameter or half?

Answer 86

radius is half of diameter

Answer 87

but theres two diameters

Answer 88

yeah..the bigger diameter is for d bigger sphere..the smaller one for the smaller sphere...now calculate the volume of the larger nd smaller sphere

Answer 89

did u find it baby?

Answer 90

large one 904.32
small one 113.04

Answer 91

so now what is the volume of the shaded part?

Answer 92

well how do i find that

Answer 93

remember what i told you..the bigger sphere is made up of the smaller sphere and the shaded part...

Answer 94

so do i add subtract what?

Answer 95

give a wild try. what should you do?

Answer 96

subtract