Question

Two opposite sides of a parallelogram have lengths of `7`. If one corner of the parallelogram has an angle of `pi/12` and the parallelogram's area is `16`, how long are the other two sides?

Answer 1

`=8.83`

Explanation:

Area `=ab sin theta` where `a=7` and `theta=pi/12` we have to find `b=?`
So Area `=16=7b sin(pi/12)`
or
`bsin(pi/12)=16/7`
or
`b(0.2588)=2.286`
or
`b=2.286/0.2588`
or
`b=8.83`