Question

Is this? http://prnt.sc/d1s1sl

Answer 1

@563blackghost @welshfella please help check this

Answer 2

First work out the capacity ( volume) of water that the conical glass can hold.

Formula is 1/3 * pi * r^2* h

Answer 3

where r = radius of the top = 1/2 * 6 = 3
and h = 5.2

Answer 4

can you do that /

Answer 5

49?

Answer 6

use your calculator
you can take pi to be 3.14
the glass on the right is a cone.
so
volume = (1/3) * 3.14 * 3^2 * 5.2

Answer 7

48.9

Answer 8

yeah - 48.98 to be more exact

Answer 9

48.984

Answer 10

lol

Answer 11

Ok now the total water is 100 ml so subtract 48.98 form that to get the volume of water in the other glass.

The other glass is a cylinder and the formula for volume of cylinder is

V = pi * r^2 * h

we know that V = 100-48.98 , pi = 3.14 and we need to find the value of the height h.

So plug in these values and solve for h.

Answer 12

r = 1/2 * 5 = 2.5
so we have the equation
51.02 = 3.14 * 2.5^2 * h

Find h and you have the answer.

Answer 13

lol ur too fast for me

Answer 14

sorry

Do you see how I got that equation?

Answer 15

yeah lol i was just typing it but you typed faster

Answer 16

i got 31.4?

Answer 17

No

first work out 3.14 * 2.5^2

Answer 18

19.625
@welshfella

Answer 19

right
so we have
51.02 = 19.625h

To find h we divide both sides of the equation by 19.625
This, of course, gives h on the right side and value of h will be on the left:-
51.02 / 19.625

Answer 20

so like 51.02/19.62 ?

Answer 21

if that, it's 2.599

Answer 22

yea

Answer 23

right, which is a) 2.6 cms.

Answer 24

thanks!!

Answer 25

yw