write an essay on a visit to a stall at a science fair.
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Explanation:
We have,
Curved surface area of cylindrical road =132 cm2
Radius of road = 0.35 cm
Let length of road be ‘h’ cm
By using the formula,
Curved surface area of cylindrical road = 2πrh
So, 2πrh = 132
2 × 22/7 × 0.35 × h = 132
h = 132×7 / 2×22×0.35
= 924 / 15.4
= 60cm
∴ Length of road is 60 cm.
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