Answer
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Hint:- In a circle, we know that In the same circle or in congruent circles, two minor arcs are congruent if and only if their corresponding chords are congruent.
Given, AB = 3 and DE = 3.
In the given circle, AB = DE and AB||DE. Hence, AB and DE are congruent chords of the circle.
And In a circle, or congruent circles, congruent chords have congruent arcs.
$
\because {\text{AB}} \cong {\text{DE}} \\
\therefore {\text{arc(AB) = arc(DE)}} \\
\Rightarrow {\text{ z = }}{90^ \circ } \\
$
Hence, the required answer is z = ${90^ \circ }$
Note:- In these types of questions, the key concept is the theorems of circles and chords. In a circle, or congruent circles, congruent chords have congruent arcs.
Given, AB = 3 and DE = 3.
In the given circle, AB = DE and AB||DE. Hence, AB and DE are congruent chords of the circle.
And In a circle, or congruent circles, congruent chords have congruent arcs.
$
\because {\text{AB}} \cong {\text{DE}} \\
\therefore {\text{arc(AB) = arc(DE)}} \\
\Rightarrow {\text{ z = }}{90^ \circ } \\
$
Hence, the required answer is z = ${90^ \circ }$
Note:- In these types of questions, the key concept is the theorems of circles and chords. In a circle, or congruent circles, congruent chords have congruent arcs.
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