• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/11

Click to flip

### 11 Cards in this Set

• Front
• Back
 SIN formula opposite leg / hypotenuse COS formula adj leg / hypotenuse you can only use trigonometry with ______ of a triangle. the actue angles, never the right angle TAN formula opposite leg / adjacent leg Angle of elevation the angle between the line of sight and the horizontal when looking up (the angle in the bottom left of an example right triangle with the right angle on the right) Angle of depression The angle between the line of sight and the horizontal when looking down (equal to the angle of elevation...on the outside when looking across from the top of the triangle) Law of Cosines b^2=a^2+c^2-2(a)(c)cos(b Law of Sines Sin(A / a = Sin(B / b to get the interior sum of a convex polygon= (n-2)180 regular polygon sides and angles are all congruent ways to prove a quadrilateral is a parallelogram 1) congruent opposite sides 2) congruent pairs of opposite angles 3) Diagonals bisect each other 4) If one pair of opposite sides is both congruent and parallel. 5) consecutive angles are supplementary