Formulas
Proportions
Triangles and Angles
100
The name of this formula:
sin A/a = sin B/b = sin C/c
What is the Law of Sines?
100
The value of x in this proportion
5/7=x/51.8
What is 37?
100
The difference between using a capital letter or lowercase letter when labeling a triangle.
What is capital letters are angles and lowercase letters are sides.
200
The name of this formula:
a^2 = b^2 + c^2 - 2bc cosA
What is the Law of Cosines?
200
The value of x in this proportion
30/5.3=18/x
What is 3.18?
200
Visual - Label the sides of this triangle correctly.
300
There are this many versions of the Law of Cosines?
What is 3?
300
Triangles that have this characteristic have side lengths that are proportional. Hint: It starts with S.
What is similar?
300
Theta in this picture is called the angle of ________.
What is elevation?
400
This formula tells you what about a triangle:
(1/2)ab sin C
What is the area of the triangle?
400
This is a proportion you could use to solve for x. Write your proportion and the answer.
Teacher must verify your proportion. x = 4 2/3 or 4.6666......
400
The sum of all three angles of a triangle.
What is 180 degrees?
500
The name of this formula is:
Area = sqrt(s(s - a)(s - b)(s - c)
s = 1/2(a + b + c)
What is Heron's formula?
500
Proving this about two triangles tells you the sides are proportional?
What is AA or Angle Angle?
500
This direction is 45 degrees east of North.
What is Northeast?