A cone of radius 3 cm and the slant height of 12 cm, when its surface – McqOptions

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1.	A cone of radius 3 cm and the slant height of 12 cm, when its surface is developed forms a sector. What is the value of the included angle of the sector?
A.	120°
B.	90°
C.	75°
D.	112°
Answer» C. 75°

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