31. In the following diagram of parallelogram ABCD, MLADC = 116', AB = FB, and EF is perpendicular to AD. Which of the following is the measure of ZEFB?
B E
(1) 18°
(2) 26°
(3) 32°
(4) 64
1160
A
F
D

What is the volume of the sphere shown below with a radius of 3?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons