Sine rule

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sin= opp/hypt

Tan= opp/hypt

cos= adj/hyp

REMEMBER: Some Old Hulk Carries A Huge Tub Of Ale

a/sinA=b/sinB=c/sinC

example

A=118 degrees

B= 39 degrees

b=7cm

a X sin 39 degrees = 7cm X sin 118 degrees

a X sin 39/ sin 39 (sin 39 both cancels) 7cm X sin 118/ sin 39

a = 7cm X sin 118/ sin 39

a= 7 X sin 118/sin 39

a= 7 X sin (118) / sin (39)

= 9.821123291