Applying the tangent theorem, for ZY to be tangent to circle X at point Y, the length of ZY must be: B. 15 units.
What is the Tangent Theorem?
The tangent theorem states that, if a line is tangent to a circle, it will form a right angle atr the point of tangency where it meets the radius of the circle.
Thus, the length of ZY would be:
ZY = √(17² - 8²)
ZY = 15 units.
The length of ZY must be: B. 15 units.
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