Simple right triangle

Right triangle. Given: side c = 18.8 and angle beta = 22° 23'. Calculate sides a, b, angle alpha, and area.

Correct answer:

a =  17.3835
b =  7.1591
α =  67.6167 °
S =  62.225

Step-by-step explanation:

c=18.8 β=22°23=22°+6023°=22.3833°22.3833  cos β = ca  a=c cos(β)=18.8 cos(22.3833°)=17.3835
b=c2a2=18.8217.38352=7.1591
α=90β=9022.3833=604057=67.6167=67°37
S=2a b=217.3835 7.1591=62.225

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