10.1.3 Review & Preview

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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 ✎

Stavka koja se može prevući		Odgovarajuća stavka
m\overset\frown{AD}		radius
m\overset\frown{AC}		chord
\overline{CD}		semicircle
∠ABC		inscribed angle
∠CDA		minor arc
\overline{AB}		central angle

The figure at right shows two concentric circles. Homework Help ✎

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What is the relationship between \overset\frown{AB} and \overset\frown{CD} ? How do you know?

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Which has greater measure, \overset\frown{AB} or \overset\frown{CD}? Which has greater length? Explain.

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If m∠P=60° and PD=14, find the length of \overset\frown{CD}. Show all work.

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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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What must it be?

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What could it be?

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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10.1.3 Review & Preview

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 ✎

What is the relationship between \overset\frown{AB} and \overset\frown{CD} ? How do you know?

Which has greater measure, \overset\frown{AB} or \overset\frown{CD}? Which has greater length? Explain.

If m∠P=60° and PD=14, find the length of \overset\frown{CD}. Show all work.

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 ✎

What must it be?

What could it be?

Which equation below is perpendicular to y=−2/5x−7 and passes through the point (4,−1)? Homework Help ✎

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 ✎

What is the relationship between \overset\frown{AB} and \overset\frown{CD} ? How do you know?

Which has greater measure, \overset\frown{AB} or \overset\frown{CD}? Which has greater length? Explain.

If m∠P=60° and PD=14, find the length of \overset\frown{CD}. Show all work.

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 ✎

What must it be?

What could it be?

Which equation below is perpendicular to y=−2/5x−7 and passes through the point (4,−1)? Homework Help ✎