Question

Geometry Help?

Answer 1

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.
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. (10 points)

Answer 2

I have Parts A and B, but I'm stuck on Part C

Answer 3

can you show me your drawing ?

Answer 4

Drawing?

Answer 5

hope this will help you understanding it sure easy

Answer 6

there was no drawing, that was the entire question, sorry for not replying either, I fell asleep

Answer 7

Oh, well you know how a compass always points north, right?

Answer 8

so can't you just use it as a protractor with north being 0 degrees?

Answer 9

Yes, but they dont mean that kind of compass, they mean the kind you draw circles with

Answer 10

thats kind of what a compass looks like

Answer 11

well then that's essentially a protractor and will tell you what angles to write at
and it's also kind of like a "straight edge" except for arcs

Answer 12

But why does it work instead of using something like geogebra?

Answer 13

yeah, you can use that to draw perfect arcs like you can use a ruler for straight edges

Answer 14

why does the compass work for the construction though? I'm confused

Answer 15

hello?

Answer 16

@ryandane

Answer 17

because you can use it without needing the internet?

Answer 18

Thank you for trying but I don't think thats the answe theyre looking for :/

Answer 19

have you taken geometry yet?