9.2. Properties of Arcs http://www.ck12.org
sin 10◦=x
25
x=25 sin 10◦= 4. 3 f t.The total distance apart is 8.6 feet.
Review Questions
Determine if the arcs below are a minor arc, major arc, or semicircle of
⊙
G.EBis a diameter.1.AB̂
2.ABD̂
3.BCÊ
4.CAÊ
5.ABĈ
6.EAB̂
- Are there any congruent arcs? If so, list them.
- IfmBĈ= 48 ◦, findmCD̂.
- Using #8, findmCAÊ.
Determine if the blue arcs are congruent. If so, state why.