is removed leaving a hole 24cm across the top, and 8cm deep. What is the radius of the ball in cm?
2007-02-09 03:56:47 · 10 answers · asked by Arnold M 1 in Science & Mathematics ➔ Other - Science
Oh, I am NOT very good at math....sorry!
2007-02-09 03:59:40 · answer #1 · answered by Anonymous · 1⤊ 1⤋
You are left with a part hemisphere depth 8 cm radius 12 cm.
If the whole sphere has radius 8 + x, you can draw a line from the centre to the circumference of the hole to make a right angle triangle with sides x and 12 and hypotenuse 8 + x. So:
(8 + x)^2 = x^2 + 12^2
Solve to find 8 + x.
I get 17 cm.
2007-02-09 04:11:35 · answer #2 · answered by Anonymous · 0⤊ 1⤋
consider the radius as 8+x
a line from the centre to circumfrence of the circle, drawn perpendicular to the cord(24cm), bisects the chord
so u obtain a right angled triangl, one side = 12cm, another = x and the hypotenues = 8+x
therefor, (8+x)^2= 144 + x^2
x= 5cm
radius= 13 cm
2007-02-09 04:57:56 · answer #3 · answered by absentmindednik 3 · 2⤊ 0⤋
14 cm
2007-02-09 04:00:18 · answer #4 · answered by Anonymous · 0⤊ 1⤋
Dear me, you seem to be unlucky. First you got "wedged in a toilet" and now this! At least I assume you must have managed to free yourself from the toilet's embrace... a) You're an idiot b) Why is this in ice skating? c) You're an IDIOT!!! d) Trooooooolllllllllllllllll!!!!!!!!!
2016-05-24 01:18:27 · answer #5 · answered by ? 4 · 0⤊ 0⤋
Vollyball size.
2007-02-09 04:30:26 · answer #6 · answered by rico3151 6 · 0⤊ 1⤋
12 cm.... lol
if i read that right
the diameter is 24 right?
2007-02-09 04:00:11 · answer #7 · answered by umm hahah 2 · 1⤊ 1⤋
12 it starts to freeze at half depth, then is forced up.
2007-02-09 03:59:20 · answer #8 · answered by David B 6 · 1⤊ 1⤋
Nice question. I'd figure it out for $5. I take paypal.
2007-02-09 04:01:56 · answer #9 · answered by Anonymous · 0⤊ 2⤋
I don't know, you tell me
2007-02-09 03:59:44 · answer #10 · answered by bbnicole104 2 · 0⤊ 1⤋