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題目

解題步驟

1. Understand the question
   1. choose the correct answer.

   are the circles tangent, concentric, or congruent?
   $r_1=r_2$
   ○ concentric
   ○ tangent
   ○ congruent

2. Brief Explanations

   Congruent circles have equal radii, tangent circles touch at one point, and concentric circles share the same center. The given circles have equal radii ($r_1=r_2$) and distinct centers, so they are congruent.

3. Final answer

   ○ congruent

答案

Question Analysis

OCR Text

8. choose the correct answer.
are the circles tangent, concentric, or congruent?
$r_1=r_2$
○ concentric
○ tangent
○ congruent

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