Question

find the values of the sine, cosine and tangent for triangle A.

Answer 1

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Answer 2

@linn99123 @MrNood

Answer 3

sin = opp/hyp
cos = adj/hyp
tan = opp/adj

Answer 4

so I will help you with Sin A = opp/hyp
first use the pyth theorem to determine the hyp

7^2 + 4^2 = 49 + 16 = 65 hyp is sqrt(65 )

Answer 5

first of all - you need to calculate the length of the hypotenuse

you can leave it as a 'sqrt' because the answers have it in that form

so usung Pythagoras - what is the length of the third side of the triangle?

Answer 6

so sin A = 4/sqrt(65) - you can't leave it like that so rewrite properly
now you should be able to do cos and tan

Answer 7

@-EtherealEbullience
so YOU need to use the same method to find the others

Answer 8

Okay, thanks guys! I wish I could give you both medals for helping! But I am more of a visual learner so Juanita explanation while including numbers helped more. ^^