Which does not represent a possible intersection of a line and a right cone with height 4 cm?
here are the choices.
3 points
2 points
1 point
a segment
2007-07-11 14:29:54 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3 points.
Assuming we're talking about a hollow cone, you can get the other possibilities like this:
2 points - easy, just put the line through the middle of the cone somewhere.
1 point - line has to be tangential to the cone at some point on the side, or pass through the vertex at a shallower angle than the slope of the cone.
Segment - the line either runs along a side of the cone, or through the base.
2007-07-11 14:33:52 · answer #1 · answered by Scarlet Manuka 7 · 0⤊ 0⤋
1 point means that the line touches the cone
2 points means that the line cuts across the cone (and produces a segment)
so that leaves 3 points as not being a possibility
2007-07-11 21:38:02 · answer #2 · answered by Aslan 6 · 0⤊ 0⤋
3 points does not represent a possibility
2007-07-11 21:32:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
3 points. Do you know which variables are constant?
2007-07-11 21:36:03 · answer #4 · answered by s g 2 · 0⤊ 0⤋