90
The ratio of the opposite side over the adjacent side is called the tangent.Expressing the fraction (opposite/adjacent) as a decimal, you can find the angle by looking in a table of values for the tangents of various angles.
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 of an angle in a right triangle is the ratio of the length of the side opposite the angle to the length of the hypotenuse.In terms of ratios, the sine of an angle is defined, in a right angled triangle, as the ratio of lengths of the opposite side to the hypotenuse.
You would have to use its opposite tangent, tan-1on your scientific calculator. It would be tan-1(opposite side/adjacent side), and you must have the opposite and adjacent sides of the angle you are trying to solve.
180
Vertically opposite angles!
Such angles are called vertically opposite angles.
Vertically opposite angles are the angles that are opposite each other when two lines cross. Vertical means they share the same vertex.
A complementary angle is an angle that when added to another angle creates a 90o angle. A supplementary angle is an angle that when added to another angle creates a 180o angle.
They are congruent.
vertically
Vertically opposite angles. (vert. opp.)
The side opposite the right angle of a right angle triangle is the hypotenuse
Vertically opposite.
Vertically Opposite Angles.
When two lines intersect, the angles across from each other are called vertically opposite angles, or just opposite angles. Opposite angles are equal to one another. See 'related links' below.