Radius of base of the cylindrical kaleidoscope is 3..5cm height is 25cm then what is the area of cylindrical kaleidoscope
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Step-by-step explanation:
Kaleidoscope is of cylindrical shape.
∴ Area of chart paper required = CSA of cylinder
= 2πrh
= 2×
7
22
×3.5×25
= 550 cm
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