I'm assuming it's 57. Because 1/2 can equal .5 and 56.5+.5=57
… z =w …angle v x w = angle z x y
It follows AAA SIMILARITY Relation
A function is relationship where a member of the Domain maps to one and only one member of the Range.
To prove a relationship is a function, a VERTICAL LINE TEST may be performed. If a vertical line cuts the graph of a relationship only once then it is a function if not, then it is not.
View the image attached for the test.
The answer is
option A
The area of a trapezpid is 1/2h×(b1+b2)