1.5-1.7 formulas Flashcards
1
Q
vertical angles
A
opposite angles that are equal
2
Q
complementary angles
A
angles that add up to 90 degrees
3
Q
supplementary angles
A
angles that add up to 180 degrees
4
Q
linear pair
A
two angles that make a straight line and are supplementary
5
Q
adjacent angles
A
angles “next to” each other
- have a common vertex
- have a common ray
- have no common interior points (points inside the angle)
6
Q
perimeter of rectangle
A
P = 2l + 2w
7
Q
circumference of circle
A
C = pi(d) or 2(pi)(r)
8
Q
area of parallelogram
A
A = bh
9
Q
area of triangle
A
A = bh/2
10
Q
area of circle
A
A = pi(r^2)
