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Trig Rule Selection 1 (right)
Contributed by: Heseltine
c2=a2+b2
a2=c2–b2
sin(θ)=opp/hyp
cos(θ)=adj/hyp
tan(θ)=opp/adj
A(∆)=½bh
x
5m
12m
Pythagoras
SOH
CAH
TOA
A(∆)=½(base x height)
20cm
12cm
α
Pythagoras
SOH
CAH
TOA
A(∆)=½(base x height)
12cm
x cm2
16cm
Pythagoras
SOH
CAH
TOA
A(∆)=½(base x height)
16cm
x cm
58°
Pythagoras
SOH
CAH
TOA
A(∆)=½(base x height)
18cm
x
7cm
c2=a2+b2
a2=c2–b2
sin(θ)=opp/hyp
cos(θ)=adj/hyp
tan(θ)=opp/adj
A(∆)=½bh
12m
5m
β
Pythagoras
SOH
CAH
TOA
A(∆)=½(base x height)
48°
x
18cm
Pythagoras
SOH
CAH
TOA
A(∆)=½(base x height)
x cm
92cm2
16cm
c2=a2+b2
a2=c2–b2
sin(θ)=opp/hyp
cos(θ)=adj/hyp
tan(θ)=opp/adj
A(∆)=½bh
64°
x
13m
c2=a2+b2
a2=c2–b2
sin(θ)=opp/hyp
cos(θ)=adj/hyp
tan(θ)=opp/adj
A(∆)=½bh
12m
δ
5m
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