No because all quadrilaterals must equal a total of 360 degrees. If you have four angles that are greater than 90 degrees the sum of all the interior angles is greater than 360 degrees therefore it cannot exist as a quadrilateral.
Given that,
Radius of the circle, r = 8.91 cm
Angle, 
To find,
The area of minor sector.
Solution,
The formula for the area of minor sector is given by the formula as follows :
So, the area of the shaded sector is 
.
First you take 7143-6997 to get her units used( it’s 146) since you know that the first 100 units cost 24p per unit so take 100 Times 24 p to get 2400p then take the remaining 46 units times 16 to get 384p.
Add 2400p+384p to get 2784p for her bill
