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Geometry

Ray C. Jurgensen, Richard G. Brown, John W. Jurgensen

$Math Studyset Vaia Explanations$ Math

Student Edition · 227 pages

ISBN: 9780395977279

Chapter 9: Q1. (page 330)

Name three radii of $⊙ o$ .

Short Answer

Expert verified

The three radii are $\bar{O T}, \bar{O R}, \bar{O L}$ .

Step by step solution

01

Step 1. Given information.

Figure is given.

02

Step 2. Concept used.

A straight line touches centre of circle to circumference is called radii.

03

Step 3. Now find radii.

There are three straight lines that touched centre of circle and circumference.

The three radii are $\bar{O R}, \bar{O T}, \bar{O L}$ .

Therefore, radii are $\bar{O R}, \bar{O T}, \bar{O L}$ .

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Most popular questions from this chapter

$\bar{T R}$ and $\bar{T S}$ are tangents to $⊙$ $O$ from $T;$

$m ∠ R T S = 36$

$(a) .$ Copy the diagram. Draw $\bar{R S}$ and find $m ∠ T S R$ and $m ∠ T R S .$

$(b) .$ Draw radii $\bar{O S}$ and $\bar{O R}$ and find $m ∠ O R S$ and $m ∠ O S R$ .

$(c) .$ Find $m ∠ R O S$ .

$(d) .$ Does your result in part $(c)$ support one of your conclusions about angles in Classroom Exercise $5 ?$ Explain.

In exercises $2 - 7$ find the measure of the arc.

$\overset{⏜}{A B D}$

Prove theorem $9.2$

a. Which pair of circles shown above are externally tangent?

b. Which pair are internally tangent?

Draw a circle with center $O$ and a line $\overset{\leftrightarrow}{T S}$ tangent to at $⊙ O$ . Draw $\bar{O T}$ and use a protractor to find $m ∠ O T S$ ?

See all solutions

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