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Mathematics 43 Online
OpenStudy (dariyana):

An architect draws the incomplete picture of a house, as shown. He draws arcs at P and Q to construct a wall CD perpendicular to wall BC. Which statement best describes the next step of the construction? Join the points D and C using a straightedge. Place the compass on point P and draw an arc below the line BT. Draw an arc across QT from the point P. Fix the compass at point T and draw an arc across QT

OpenStudy (dariyana):

OpenStudy (paxpolaris):

You can't just Join C-D.... You have to make sure ... That the line you draw from C is perpendicular to BC first.

OpenStudy (dariyana):

so the answer is A

OpenStudy (paxpolaris):

no .... i said it can't be A....

OpenStudy (paxpolaris):

@dariyana ?? you follow why?

OpenStudy (dariyana):

no not really @PaxPolaris

OpenStudy (paxpolaris):

you should Place the compass on point P and draw an arc below the line BT. then Place the compass on point Q and draw an arc that meets the other arc you made... then pass a line through the point where they meet and C.

OpenStudy (dariyana):

lol i knew that so the answer wold be B correct

OpenStudy (paxpolaris):

then you will know for sure that the line you are drawing is perpendicular

OpenStudy (paxpolaris):

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