SOLUTION: Two 12mm sides of a rhombus for a 60 degree angle. Fine the area of the rhombus. I just dont understand.

Question 189851: Two 12mm sides of a rhombus for a 60 degree angle. Fine the area of the rhombus. I just dont understand.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
One of the formulas for the area of a rhombus is where "s" is the length of the side and "x" is the angle given

Start with the given formula

Plug in and

Square 12 to get 144

Evaluate the sine of 60 to get (use the unit circle)

Multiply

Reduce

... Approximate the right side using a calculator

So the area of the rhombus is about 124.708 square mm.
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