Given: Adjacent sides of a parallelogram: 10 cm and 8 cm Angle between them: 150∘ Formula used: Area of parallelogram =a×b×sin(θ) Where: a= one side, b= adjacent side, θ= angle between sides Calculation: Area =10×8×sin(150∘) ⇒sin(150∘)=sin(30∘)=1∕2 ⇒ Area =10×8×(1∕2) ⇒ Area =40cm2
