Someone pls help me with parts a and b!!

Part a)  45 degrees

Part b)   The image looks the same as the original, the vertices rotate around point M in three steps of 45 degrees each (see attached image)

Step-by-step explanation:

Part a)

Notice that since this is a regular figure with 8 sides, in order to find the angle subtended by each, we divide 360 degrees into 8 parts, and that gives us a measure of : 360 / 8 = 45 degrees

So each angle measures 45 degrees, and also the requested angle AMB

m AMB = 45 degrees.

Part b)

Notice that a rotation of 135 degrees is equivalent to 3 rotations of 45 degrees, since  45 x 3 = 135

Then as we rotate the image around the center M in 3 chunks of 45 degrees, we are going to end up in a figure that looks exactly like the original one, but the only thing is that we see the names of the vertex in different positions. Vertex A goes now to where vertex F was. Vertex B goes to where vertex G was, etc.  Please see attached imagewhere the new vertex are denoted in red.

answer: the correct one is a

step-by-step explanation:

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.