STEP 1: find angle α
To find angle α use formula:
sin(2α)=d1d2 After substituting d2=16cm and d1=30cm we have:
sin(2α)=30cm16cm sin(2α)=158 2α=arcsin(158) 2α=32.231oα=32.231o⋅2α=64.4619o STEP 2: find angle β
To find angle β use formula:
α+β=90o After substituting α=64.4619o we have:
64.4619o+β=90o β=90o−64.4619o β=25.5381o
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