Angles Flashcards
1
Q
Given three angles of a triangle – a, b, and c – what is the measure of the exterior angle x (next to the c angle)?
A
Exterior Angle Theorem:
x=a+b
*Since a+b+c=180 and c+x=180 ->c+x=a+b+c ->x=a+b
2
Q
Relation between vertical angles in a transversal
A
They are =
3
Q
Relation between alternate interior angles in a transversal
A
They are =
4
Q
Relation between corresponding angles in a transversal
A
They are =
5
Q
Relation between same side interior angles in a transversal
A
They are supplementary
6
Q
Calculate the sum of the interior angles of a polygon which has n sides
A
180(n-2)
7
Q
Define regular polygon
A
A polygon where all sides and angles are equal
8
Q
The measure of one single angle in a regular polygon with n sides
A
(180(n-2))/n
