Trig Review
What is opposite over adjacent?
tangent
What is the formula to find the length of an arc in a circle?
Arc Length = 2(pi)r(theta/360)
What kind of transformation is represented by the following rule?
(x, y) -> (x-2, y+3)
Translation
When was Earth Day this year?
Saturday, April 22
The KDP Extinction (the extinction event that killed the dinosaurs) occurred how long ago?
65 million years
How many radians are in a circle?
2pi
What is the length of an arc of a circle whose radius is 8cm and the central angle is 40 degrees?
5.582 cm
What kind of transformation is represented by this rule?
(x, y) -> (3x, 3y)
Dilation
What year was the first Earth Day celebrated?
1970
The Velociraptor from "Jurassic Park" by Michael Crichton was based on what real dinosaur?
Deinonychus
Theta
If a circle has a circumference of 62.8 miles, what is its area?
Approximately 314 square miles
A rotation of the point (1, 1) 180 degrees counterclockwise would bring us to what point?
(-1, -1)
Researchers from MIT predicted back in the 1970s that society would totally collapse by what year?
2040
Archosaurs were the ancestors of dinosaurs. What are the dinosaurs modern descendents?
Birds
cos(pi)
-1
If a circle has an area of 201.1 square inches, what is its circumference?
Approximately 50.24 inches
Which of the following will NOT produce an image that is congruent to the original figure?
A) Translation B) Dilation
C) Reflection D) Rotation
B) Dilation
In order to prevent climate catastrophe, we need to keep greenhouse gas emissions from climbing above how many degrees above pre-industrial levels?
2
When did dinosaurs first appear in the fossil record?
Triassic Period
0
Identify the central point of the circle that has the following equation.
(x-1)^2 + (y+3)^2 = 4
(1, -3)
Who won the presidential election of 1896?
William McKinley
Name some greenhouse gases.
Carbon dioxide, methane, nitrogen oxide, carbon monoxide...
What was the first dinosaur ever discovered?
Megalosaurus