Triangles
What does angle sum theorem state?
The three interior angles of a triangle add upto 180 degrees
If a scatter plot has dots going up from left to right what correlation is it
Positive
What is a secant
A straight line that cuts through a circle to connect two points on a circle
What are complementary angles
Two angles that combine to form a right angle
What is sine
opposite/hypotenuse
What's an equalateral triangle
All three sides of the triangle are equal and all angles are exactly 60 degrees
What is the line of best fit
A line drawn through the dots on the scatter plot to represent the trend
What is the relation between a circle's diameter and radius
The diameter is twice the radius and the radius is half the diameter
What are parallel lines
Two lines that will never intercept each other
What is the pythagorean theorem formula
a2+b2=c2
What's the formula for the area of a triangle
A=1/2xBxH
If the dots of the scatter plot are packed close to the line of best fit, what does that say about the correlation
It is strong
What is the name of the longest line segment that passes inside a circle through it's center
The diameter
What is the rule for consecutive interior angles when the lines are parallel
They are supplementary angles
When should you use the laws of cosine and sine
When the triangle ;does not have a right angle
Find the area of a triangle with side lengths of 10,8, and 5
19.81
What is a non- linear relationship on a scatter plot
When the line curves instead of going straight
What is always true about the inscribed angle that goes through a semi circle
It is a right angle
What are alternate exterior angles
Two angles that are opposite of each other on the outside of parallel lines
What does the law of sine state about any triangle
The ratio of the length of a side to the Sine of its opposite angle is equal for all three sides.
Can a triangle be both right angled and equalateral
No
What is an outlier on a scatter plot
A point away from all the other points on the scatter plot
What is the formal geometric definition of a circle
A collection of points on a surface that are all an equal distance from one central point
What angle relationship exists between the diagonal lines of a square or rhombus
They are perpendicular
As an acute angle gets wider and closer to the right angle, what happens to the sine and cosine
The sine grows and the cosine gets smaller