Can you conclude that this parallelogram is a rectangle? Explain.
2 answers:
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Sector area = (central angle / 360) * PI * radius^2
sector area = (1 / 6) * PI * 5^2
sector area = <span> <span> <span> 13.08996939 </span> </span> </span>
sector area = <span> 13.1 square inches
</span>
sector area = (1 / 6) * PI * 5^2
sector area = <span> <span> <span> 13.08996939 </span> </span> </span>
sector area = <span> 13.1 square inches
</span>
Take the linear coefients easy
11,-12, 7
5,12,-7
so
![\left[\begin{array}{ccc}11&-12&7\\5&12&-7\end{array}\right]](https://tex.z-dn.net/?f=%20%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D11%26-12%267%5C%5C5%2612%26-7%5Cend%7Barray%7D%5Cright%5D%20)
or you could do also
![\left[\begin{array}{ccc}11&-12\\5&12\end{array}\right] \left[\begin{array}{ccc}7\\-7\end{array}\right]](https://tex.z-dn.net/?f=%20%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D11%26-12%5C%5C5%2612%5Cend%7Barray%7D%5Cright%5D%20%20%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D7%5C%5C-7%5Cend%7Barray%7D%5Cright%5D%20)
11,-12, 7
5,12,-7
so