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In a rhombus, all the side lengths are $10,$ and one of the angles is equal to $120^\circ.$ Find the area of the rhombus.

 Mar 6, 2023
 #1
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The area of the rhombus is 1/2*10*10*sin(120) = 25*sqrt(2).

 Mar 6, 2023
 #2
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Area ==a^2 * sin(θ)

Area ==10^2 * sin(120)

Area ==100 x  sqrt(3) / 2

 

Area ==50 sqrt(3) 

 Mar 6, 2023

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