Question

The figure below shows some steps performed to circumscribe a circle about triangle ABC using only a compass and straightedge.

Which of the following statements about segment RS must be true?

It bisects side BC of the triangle.

It meets segment PQ at a right angle.

The length from point O on the segment and R is the radius of the circumscribed circle.

The distance from the midpoint of the segment to any vertex is the radius of the circumscribed circle.

Answer 1

@phi

Answer 2

@phi

Answer 3

see http://www.mathopenref.com/constcircumcircle.html
and read the description of what they are doing

Answer 4

IS IT C @phi

Answer 5

@phi

Answer 6

@gypsy1274

Answer 7

@gypsy1274

Answer 8

is the answer c?

Answer 9

@gypsy1274

Answer 10

@phi