There are two types of relationships: supplementary and complimentary. Supplementary angles always add up tp 180 degrees. Complimentary angles always add up to 90 degrees. If you are dealing with complimentary angles, look for a right angle.
They are all 60 degrees.
Measure the two sides adjacent to the angle and the diagonal at the far ends of these sides. Then use the cosine rule to calculate the angle.
True
an adjacent corresponding angle is an angle which is adjacent to a particular angle as well as corresponding.
true
It is: 180-vertex angle = exterior angle
They are all 60 degrees.
Very rarely.
Measure the two sides adjacent to the angle and the diagonal at the far ends of these sides. Then use the cosine rule to calculate the angle.
usea protracter
Take the inverse tangent -- tan-1(opposite side/adjacent side)
90 degrees is the angle
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.
True
an adjacent corresponding angle is an angle which is adjacent to a particular angle as well as corresponding.
Can't be determined
true