college geometry

Question

⊙D is shown below. 

Which of the following statements are true? 

Create an answer using the numbers associated with the true statements. For example, if only 1, 2, and 5 are true, then the answer is 125; if only 3 and 5 are true, then the answer is 35, etc.

If a given statement does not contain names of geometrical objects, it is a general statement about circles and is not necessarily related to the diagram.

1.   BA−→ is a secant of ⊙D.

2.   If two parallel lines intersect a circle, the intercepted arcs between those lines are congruent.

3.   m∠ABE=mAH⏜

4.   CH−→− is a tangent of ⊙D.

5.   A secant is a line (segment, or ray) that intersects a circle in exactly one point.

6.   A tangent of a circle is perpendicular to the radius at the point of tangency.

7.   m∠ABF=12⋅mAB⏜

a) 1267

b) 12467

c) 1237

d) 25

e) 267

f) 136

g) None of the above

Answer 1

If question 7 is actually m∠ABF=(1/2)⋅mAB⏜ (not 12) then it is 267 which is e. If not, then it is g.