Maths - trigonometry

Description

year 9 Year 9 Flashcards on Maths - trigonometry, created by Aoife McMahon on 01/03/2016.
Aoife McMahon
Flashcards by Aoife McMahon, updated more than 1 year ago More Less
Josh Price
Created by Josh Price almost 9 years ago
Usman Rauf
Copied by Usman Rauf almost 9 years ago
Aoife McMahon
Copied by Aoife McMahon almost 9 years ago
Aoife McMahon
Copied by Aoife McMahon almost 9 years ago
Aoife McMahon
Copied by Aoife McMahon almost 9 years ago
Aoife McMahon
Copied by Aoife McMahon almost 9 years ago
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Resource summary

Question Answer
How do you calculate sin? opposite ------------------ hyptoenuse
How do you calculate cos? adjacent -------------- hypotenuse
How do you calculate tan? opposite ------------- adjacent
How do you know weather to use sin, cos or tan? The hypotenuse is always the line opposite the right angle. Adjacent is always the line next to the angle. Opposite is always the line opposite the angle. SOH CAH TOA
How do you calculate sin (side)? sin θ = opposite / hypotenuse sin (angle) = x / hypotenuse x = sin (angle) x hypotenuse
How do you calculate sin (angle)? sin θ = opposite / hypotenuse θ = sin-1 (opposite / hypotenuse)
How do you calculate cos (side)? cos θ = adjacent / hypotenuse cos (angle) = x / hypotenuse x = sin (angle) x hypotenuse
How do you calculate cos (angle)? cos θ = adjacent / hypotenuse θ = cos -1 (adjacent / hypotenuse)
How do you calculate tan (side)? tan θ = opposite / adjacent tan (angle) = x / adjacent x = tan (angle) x adjacent
How do you calculate tan (angle)?
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