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Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 18cm α 16cm 12cm c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC x 5m 12m Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 18cm α 16cm2 12cm Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 20cm 12cm α c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC x 38° 130° 12m Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 12cm x cm2 16cm Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 16cm x cm 58° c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC 82m2 5m x 38° c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC x 12° 38° 5m 12m Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 18cm 52° x 12cm Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 18cm x 7cm c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC 12m 5m β c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC 12m 75° 5m x Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 48° x 18cm Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula x cm 92cm2 16cm c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC 13m 7m 115° x c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC 78° 7m 13m x m2 c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC 64° x 13m c2=a2+b2 sin(θ)=opp/hyp cos(θ)=adj/hyp tan(θ)=opp/adj A(∆)=½bh a/sinA = b/sinB c2=a2+b2–2ab sinC A(∆)=½ab sinC 12m δ 5m Pythagoras SOH CAH TOA A(∆)=½(base x height) Sine Rule Cosine Rule A(∆) - Sine Formula 13cm x cm 42° 17° |