# what is a semi-vertical angle

• Oct 14th 2007, 10:15 AM
afeasfaerw23231233
what is a semi-vertical angle
i only want to know what is a semi-vertical angle of 45 degree. can anyone draw a graph of it for me
• Oct 14th 2007, 10:21 AM
Jhevon
Quote:

Originally Posted by afeasfaerw23231233
i only want to know what is a semi-vertical angle of 45 degree. can anyone draw a graph of it for me

do you know what the line y = x looks like? the acute angle that line makes with the positive x-axis is a semi-vertical angle

this is my 44:):)th post!!!
• Oct 14th 2007, 11:07 AM
afeasfaerw23231233
the question of my book said:
a right circular conical vessel with the semi-vertical angle of 45 degree is placed on a horizontal table with its apex upwards. water is poured into the vessel through a small hole in the apex, at a uniform rate of 12 m^3/s
........ another question said:
water is flowing at the rate of 10 cm^3/s into a leaking inverted circular cone of semi-vertical angle of 30 degree ............
what does that semi-vertical angle mean?
• Oct 15th 2007, 12:37 AM
afeasfaerw23231233
semi-vertical angle
• Oct 15th 2007, 01:47 AM
ticbol
As usual, if I don't undferstand a term, I look it up in the internet.
Google gave me a website that says,