1.

What is the formula for the number of blades?

A. number of blades = 3.14 * outside diameter * (1.25 – 1.5)* width of fan
B. number of blades = 3.14 / outside diameter * (1.25 – 1.5)* width of fan
C. number of blades = 3.14 * outside diameter / (1.25 – 1.5)* width of fan
D. number of blades = 3.14 * outside diameter * (1.25 – 1.5) / width of fan
Answer» D. number of blades = 3.14 * outside diameter * (1.25 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1.5) / width of fan


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