I can't create the triangle and it's already dark here, so I can't take the picture outside. The lines also have to be straight.
2006-12-06 13:44:15 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Open an umbrella and look at the triangles formed by the straight metal spokes.
2006-12-06 21:17:43 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Hi Do you have a chisel or screwdriver? The angle where the blade meets the main body is obtuse.
2006-12-06 21:48:46 · answer #2 · answered by Cirric 7 · 1⤊ 0⤋
an obtuse triangle is made with the following vertices on a sphere (earth):
north pole
south pole
any other point
2006-12-06 21:50:31 · answer #3 · answered by mr green 4 · 1⤊ 1⤋
Go up to your attic, if you have one, and take a pic of the wooden triangle thingies (sorry, don't know the proper construction term) that support the roof.
2006-12-06 21:47:59 · answer #4 · answered by Anonymous · 1⤊ 0⤋
The flap on the back of an envelope.
2006-12-06 21:51:34 · answer #5 · answered by nownow_now 1 · 3⤊ 0⤋