Question

help! Medal&Fan

Answer 1

An architect plans to make a drawing of the room of a house. The segment LM represents the ceiling of the room. He wants to construct a line passing through Q and perpendicular to side LM to represent a wall of the room. He uses a straightedge and compass to complete some steps of the construction, as shown:

Answer 2

Which of these is likely to be his next step in constructing the perpendicular line?

Fix the compass at Q, and draw an arc below the line.

Fix the compass at L, and draw an arc above the line.

Without changing the width and position of the compass, draw an arc between L and M.

Without changing the width of the compass, place the compass at M, and draw an arc.

Answer 3

@Hero

Answer 4

@No.name

Answer 5

@AravindG

Answer 6

http://www.mathopenref.com/constperpextpoint.html