How do you find the sine of an angle in a right triangle?
length of opposite side/length of hypotenuse
What is the probability of drawing a face card from a deck of 52 cards?
12/52, or 23.07
(2x+5)(x+2)
2x2+9x+10
Is the square root of this number rational or irrational: 3
Irrational
What is the SAS Similarity Statement?
The Side-Angle-Side Similarity Statement, which states that if 2 sides of one triangle are the same length as 2 other sides of triangle and the angles in between the sides are equal, the triangles are congruent
How do you find the cosine of an angle?
length of adjacent side/length of hypotenuse
What is the probability of a red face card being drawn from a deck of 52 cards?
6/52, or 11.5%
(5x-2)(x+7)
5x2-33x-14
What is the missing angle of a right triangle where one of the acute angles is 50 degrees?
40 degrees
How do you find the tangent of an angle?
Length of opposite side/length of adjacent side
A coin is flipped three times, what is the probability of it landing on head at least once?
7/8, or 87.5%
Is pi rational?
No, because it is a number with a never ending string of numbers
What do all angles in triangles add up to?
180 degrees
How are cosine and cosecant related?
They are the opposite of each other
Two dice are rolled, what is the probability of getting a sum of 12?
1/36, or 2.77%
Why do you only need to know that 2 angles in a triangle are equal to 2 angles in another triangle for them to be congruent?
All triangles' angles add up to 180 degrees, so the third angle in each triangle will automatically be equal to each other.
How are sine and cosine of an angle related?
The sine of one angle equals the cosine of it's complementary angle, and vice versa
What is more probable: a queen being a red card or a red card being queen
A queen being a red card, having a probability of 2/4 while a red card being a queen has a probability of 2/26
What is the greek letter theta used for?
To represent an unknown angle