pythagoras and trig.

Question 1

pythagoras theorem: find hypotenuse

Answer 1

c=√(a² + b²)

Question 2

trig: mnemonic to help choose correct ratio

Answer 2

sOh cAh tOa

Question 3

trig: sine ratio

Answer 3

sin θ = opp/hyp or θ = sin^-1(opp/hyp)

Question 4

trig: cosine ratio

Answer 4

cos θ = adj/hyp or θ = cos^-1(adj/hyp)

Question 5

trig: tangent ratio

Answer 5

tan θ = opp/adj or θ = tan^-1(opp/adj)