Flashcards
Math: Chapter 6: Trigonometry
Cards in this deck (11)
- 1Bearings back bearing clinton walks towards abi's house60 on a breaing of 240. What is the brearing Abi should take if she walks to meet Clinton?240-180 = 060
remember have three values - 2Pythagoras theorema2 + b2 = c2
- 3SOH CAH TOAsin0 = opposite / hypotenuse
cos0 = adjacent / hypotenuse
tan0 = opposite / adjacent - 4how do you find the shortest distance from a point to a line?The perpendicular distance
find equation of perpendicular line
find point of intersection
find Pythagoras theorem to find distance to get answer - 5Find the shortest distance from the point 3,0 to the line with equation y = 1/2x + 11/2 * m = -1 = m=-2
y=-2x + c
3,0 - 0=-2*3+c c=6
y = -2x+6
1/2x + 1 = -2x + 6
x = 2
x = 2 y=2
square root (2-0)>2 + (2-3)>2 = square root 5 - 6calculate sin cos tanjust type in calculator lol
then do 180- anws 360-ans -180-anws...
do sin-1 - 7sine rulea/sinA = b/sinB = c/sinC
- 8Cosine rulea2 = b2 + c2 - 2bc cosA
- 9Cos Ab2+ c2 - a2 / 2bc
- 10Area of a triangle1/2 ab sinC
- 11how do you find the length of a line?`square root (x2-x1)2 + (y2-y1)2
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- Math Flashcards on Math: Chapter 6: Trigonometry, created by HRYN red on 06/04/2021.
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- HRYN red
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