Answer:
C. 10.5
Explanation:
Intersecting chords theorem
If two chords intersect in a circle, the products of the measures of the segments of the chords are equal.
⇒ 15 · 7 = 10 · x
⇒ 105 = 10x
⇒ x = 105 ÷ 10
⇒ x = 10.5
1.6m questions
2.0m answers