Question

in circle d, which is tangent to the circle?

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Explanation:

Step1: Recall the definition of a tangent

A tangent to a circle is a line that touches the circle at exactly one point.

Step2: Analyze each option

• $\overleftrightarrow{GH}$: This is a secant (intersects the circle at two points \(G\) and \(H\)).
• $\overleftrightarrow{AB}$: This line touches the circle at exactly one point \(B\).
• $\overline{CD}$: This is a radius (a line - segment from the center \(D\) to a point \(C\) on the circle).
• $\overline{EF}$: This is a chord (a line - segment with both endpoints on the circle).

Answer:

\(\overleftrightarrow{AB}\)