The figure at right shows two concentric circles. Homework Help ✎
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1
1
Question 5
5.
In ⊙Y below, assume that m\overset\frown{PO} =m\overset\frown{EK}. Prove that \overline{PO}≅\overline{EK}. Use the format of your choice. (Hint: Think triangles....) Homework Help ✎
While working on the quadrilateral hotline, Jo Beth got this call: “I need help identifying the shape of the quadrilateral flowerbed in front of my apartment. Because a shrub covers one side, I can only see three sides of the flowerbed. However, of the three sides I can see, two are parallel and all three are congruent. What are the possible shapes of my flowerbed?” Help Jo Beth answer the caller’s question. Homework Help ✎
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1
For each pair of triangles below, decide if the triangles are similar or not and explain how you know. If the triangles are similar, complete the similarity statement ΔABC∼Δ___. Homework Help ✎
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Question 11
11.
Assume point B is the center of the circle below. Match each item in the left column with the best description for it in the right column. Homework Help ✎
m\overset\frown{AD}
radius
m\overset\frown{AC}
chord
\overline{CD}
semicircle
∠ABC
inscribed angle
∠CDA
minor arc
\overline{AB}
central angle
Question 2
2.
What is the relationship between \overset\frown{AB} and \overset\frown{CD} ? How do you know?
Question 3
3.
Which has greater measure, \overset\frown{AB} or \overset\frown{CD}? Which has greater length? Explain.
Question 4
4.
If m∠P=60° and PD=14, find the length of \overset\frown{CD}. Show all work.
Question 6
6.
What must it be?
Question 7
7.
What could it be?
Question 8
8.
Question 9
9.
Question 10
10.
Which equation below is perpendicular to y=−2/5x−7and passes through the point (4,−1)? Homework Help ✎