A meter is 100 cm. So, the final length is 
cm.
150 cm.
150 cm.
Describe two ways in which you can find the perimeter of the Pentagon
1 answer:
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You can use the sine law, which states that, in every triangle, the ratio between a side and the sine of the opposite angle is constant.
So, we have
where is the angle you're looking for. Now, remember that
, and we can solve the equation for
:
Which implies that the angle itself is