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प्रश्न
Find the curved surface area of a cone with base radius 5.25 cm and slant height 10cm.
उत्तर
Given that,
Radius of a base of a cone = 5.25 cm
Slant height of cone=10 cm
Curved surface area of cone=` pirl`
`=22/7xx5.25xx10cm^2`
` =(22xx0.75xx10)cm^2`
`= 165 cm^2`
Thus, the curved surface area of a cone is `165cm^2`
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