Math, asked by ramchandran8426, 4 hours ago

एक बेलन की ऊंचाई 25 सेमी है और आधार का क्षेत्रफल 154 वर्ग सेमी है तो बेलन के वक्र पृष्ठ का क्षेत्रफल ज्ञात करें

Answers

Answered by bharatpalsingh137
2

Answer:

Area of Surface = π(r^2) = 154cm

r^2 = 49cm

r = 7cm

height of Cylinder (h) = 25cm

Curved Area of Cylinder = 2πrh

Put the values in the formula

Curved Area of Cylinder = 2×3.14×7×25 = 1099cm^2

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