Answer :
3.9 cm is the smallest diameter of pipe that will fit the fiber optic line.
What is diameter?
- Diameter is the full length of the circle running from the edge, through the midpoint, all the way to the other side.
- That is this whole length right here. The diameter of a circle is represented by the letter d.
we know that
The diameter of the circle is equal to BD
Applying the Pythagoras Theorem
BD² = BE² + DE²
substitute the given values
BD² = (3)² + (2.5)²
BD² = 9 + 6.25
BD² = 15.25
BD = √15.25
BD = 3.9 cm
Therefore , 3.9 cm is the smallest diameter of pipe that will fit the fiber optic line.
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