Question

PLEASE PLEASE PLEASE HELP
Brandon uses the following steps to construct a perpendicular line through a point C on a line segment. He first draws two arcs from point C intersecting the line segment in points A and B. The next four steps are listed below.

Step 1: Using the same compass width draw two more arcs from point C, one above and the other below the line.
Step 2: Without changing the compass width draw two arcs from point B above and below the line segment.
Step 3: Label the point of intersection of the arcs above the line segment as M and below the line as N.

Answer 1

Step 4: Using a straightedge, join point M and point N.

Part A: Which is the first incorrect step?
Part B: Using complete sentences, explain your answer for Part A.
Part C: Explain why a compass works for the construction done by Brandon.

Answer 2

the step used to take A is omit
the rhombus CMBN has 2diagonals CB and MN orthogonal together because CM=CN=BM=BN.
the compass works for that because when we don't change its with, it makes the same arc and the same length

Answer 3

that fact help you draw the rhombus, square or divide the segment line and so on which have to be the same length

Answer 4

@Hoa thank you :) i still dont really understand though.

Answer 5

take out the compass, and follow the steps, you will understand

Answer 6

@hoa which one was incorrect...i put down that step two was incorrect

Answer 7

Since the question doesn't indicate about the half wrong, you cannot say which one is wrong, the step 2 100%right, just omit when taking A from step one. .I hope you draw out the picture. I did it before sending you the answer, I didn't guess. So you should do the same.

Answer 8

@Hoa can you help me with my last question

Answer 9

I answered it already, at the 1st reply

Answer 10

i was talking about a different question but i figured it out thank you @Hoa

Answer 11

can you please explain better I don't understand??