Question 150200
Find the area of a triangle if side b = 5, side c = 4, and angle A = 20 degrees.
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There is a formula that says Area of a triangle  = absinC
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Your Problem:
Area = bcsinA
Area = 5*4*sin(20)
Area = 20sin(20)
Area = 6.84...
Cheers,
Stan H.