Precalculus Flashcards: Constructing Tangents To Circles

Study Constructing Tangents To Circles in Precalculus with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Find the tangent length: $r=6$ and $OP=10$ ; what is $PT$ ?

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ANSWER

$8$ . Use $PT=\sqrt{10^2-6^2}=\sqrt{100-36}=\sqrt{64}$ .

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Precalculus: Theorems About Circles

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What this deck covers

This deck focuses on Constructing Tangents To Circles, giving you a quick way to review the definitions, rules, and examples that matter most for Precalculus.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set

A circle

O

has center

O

and radius

8

. An external point

P

satisfies

OP=17

. A tangent from

P

touches the circle at

T

. For the circle described, what is the length of the tangent segment

PT

Choose an answer

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