Question
In a parallelogram, adjacent sides are 10 cm and 8 cm,
and the included angle between them is 60°. Find the area of the parallelogram.Solution
Area = ab sinθ Here a = 10, b = 8, θ = 60° sin60° = √3/2 Area = 10 × 8 × √3/2 = 80 × √3/2 = 40√3 cm².
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