I know,I just asked this, but fouled the question up. Sorry, here goes again.
I have the length of a triangle's base and the angle at its apex. How do I calculate the height of this triangle. It may be isosceles, right, or anything in between.
Adding a line from apex to base is not allowed. Using _only_ the angle at the apex and the length of the base, how to calculate the height of the triangle
2007-03-28 03:56:59 · 2 answers · asked by credo quia est absurdum 7 in Science & Mathematics ➔ Mathematics
Gee..first two posters bummed me out. I was afraid of that. What if I turn it around and have the two angles at the base. Can I then get the height without adding a line?
2007-03-28 05:27:38 · update #1
You cannot. Various triangles can be drawn that have the sam apex angle and the same base but have different heights.
Just draw a circle, then draw a chord = base. Now select any oint ot the circle and draw a line from that point to the endpoints of the chord. Each such triangle you draw from a didderent point on the circle to the endpoints of the chord has the same apex angle and the same base, but a different height.
2007-03-28 04:16:53 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋
you can't not enough data
proof : you can draw 7 or 100 triangles having same base and same vertex angle and 7 or 100 different heights
2007-03-28 11:07:49 · answer #2 · answered by emy 3 · 0⤊ 0⤋