A rectangle has a width of 9 units and a length of 40 units. What is the length of a diagonal?
A 31 units
B 39 units
C 41 units
D 49 units

Im not that good with division but i think 5 is -6but dont quote me on thatim not the best in division but thats my answer

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c