square
the sine rule, angle (a) and opposite length is eaqual to angle (b) and opposite length. which are also equal to angle (c) and opposite length. Sin A = Sin B = Sin C ------- -------- ---------- a -------- b -------- c
This is a rectangle, or the special case of the square (all sides equal).
Opposite angles are equal
A parallelogram is a quadrilateral with 2 pairs of parallel sides and a rhombus is a 4 sided figure (thus a quadrilateral) with all sides of equal length. Because opposite sides are of equal length opposite angles must also be equal. This angle measure defines a parallelogram.
This would be a parallelogram or a rhombus. A parallelogram is like a pushed over rectangle and a rhombus a pushed over square. All sides are equal length and parallel on a rhombus but opposite sides are equal and parallel on a parallelogram. None of the sides are joined by 90 degree angles.
A Rhombus
a pentagon
the tangent of an angle is equal to the length of the opposite side from the angle divided by the length of the side adjacent to the angle.
the sine rule, angle (a) and opposite length is eaqual to angle (b) and opposite length. which are also equal to angle (c) and opposite length. Sin A = Sin B = Sin C ------- -------- ---------- a -------- b -------- c
True. In any triangle, the longest side is always opposite the largest angle; the shortest side is always opposite the shortest angle; and the middle length side is always opposite the middle size angle. In an isosceles triangle, there is no middle length side; and the two sides of equal length are opposite the angles of equal size. In an equilateral triangle, all sides are the same length, as are all the angles.
This is a rectangle, or the special case of the square (all sides equal).
its a rhombus
If all pairs of opposite sides are parallel, each pair must be equal.
It has 2 pairs of equal opposite parallel sides
Opposite angles are equal
are the opposite angle of parallelogram equal
Remember SOHCAHTOA which means, the Sin of an angle is equal to the Opposite side divided by the Hypotenuse, the Cos of an angle is equal to the Adjacent side divided by the hypotenuse, and the Tangent of an angle is equal to the Opposite side divided by the Adjacent side. So as long as you have two sides of a right triangle, then you can find the angles and the length of the third side.