how do i work out the interiors angles of a parallelogram on a diagona l and on a corner?
any sites i could visit?
2006-10-09 07:29:46 · 7 answers · asked by JonZ 1 in Education & Reference ➔ Homework Help
any rubbish will be reported!
2006-10-09 07:51:21 · update #1
Adjacent angles in a parallelogram are supplementary. Opposite angles of a parallelogram are equal. This should help you to solve your question regarding angles of a parallelogram.
2006-10-09 07:50:52 · answer #1 · answered by Caffeinated 4 · 0⤊ 0⤋
If you know the length of the sides you could put the diagonal through and use a triangle to work out half the angle using the cosine rule:
a^2 = b^2 + c^2 - 2bc * cos(A)
-angle A is opposite side a
2006-10-09 09:11:24 · answer #2 · answered by Helen B 5 · 0⤊ 0⤋
The acute (narrow) angle and the obtuse (wide) angle of a parallelogram add up to 180 degrees. All the internal angles add up to 360 degrees.
2006-10-09 08:04:28 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Try www.math.com. You can select geometry for help.
If that doesn't help you try posting a specific question so someone can give you some tips.
2006-10-09 07:33:22 · answer #4 · answered by PatsyBee 4 · 0⤊ 0⤋
Do your own homework
2006-10-09 07:40:59 · answer #5 · answered by Anonymous · 0⤊ 0⤋
try this http://www.sosmath.com/trig/trig.html
2006-10-09 07:50:17 · answer #6 · answered by sighspy 3 · 0⤊ 0⤋
!*()????!!!
2006-10-09 07:37:55 · answer #7 · answered by Anonymous · 0⤊ 0⤋