One line that crosses two other lines
What is a transversal?
These add up to 180°
What is the sum of all angles in a triangle
Name the postulates to prove triangles are congruent
SSS, SAS, HL, ASA, AAS
(n-2) * 180
The equation to find the sum of all interior angles in a polygon
(x - h)2 + (y - h)2 = r2
What is the equation to a circle?
These two angles are congruent
What is the relationship of alternate Interior/Exterior angles.
a2+b2=c2
What is the Pythagorean theorem
A line or angle is congruent to itself
((n-2) * 180) / n
The equation to find one interior angle of a regular polygon
mAB/360 * pi * r2
How to find the area of a section of a circle
Let <1 = (2x+5) and <8 = (3x-32)
37
If you have a triangle and the angle measurements are 72° and 58° what is the measurement of the third angle?
What is 50°
A way to prove two right triangles are congruent
Hypotenuse - Leg postulate
A polygon whose angles are congruent and sides are congruent
What is a regular polygon
If given the arc length in degrees how can you find the measurement of the inscribed angle?
divide the measurement of the arc length by 2
If <5 = (2x+17)° and <6 = (3x+13)°
What is m<5?
77°
The biggest angle is always across for the _______ _____.
Biggest Side
What postulate proves these two triangles are congruent?
SAS
What is the sum of all exterior angles of a decagon?
360

What is the area of the shaded region?
5.24
If m<6 = (5x+13) and m<7 = (11x-5)°
First what is the relationship and what is the angle measure of <7
Vertical Angles
28°
does 8in, 10in, 18in form a triangle
No

What postulate proves these two angles are congruent?
AAS
What is the measure of each angle in regular 16-gon
157.5
What is the arc length of PQ?
9.42