1.

Fill in the blanks.1. The curved surface area of a solid cylinder of radius 2 cm and height 20 cm is_____m2 (Write answer in 3 significant digits)2. Im = ______ ly

Answer»

1. Curved area = 2πl
= 2 × 3.14 (2 × 102) × 20 × 102
= 2.51 × 10-6m2

2. l ly= 9.46 × 1015 m
lm = \(\frac{lIy}{9.46×101^5}\) ≈ 10-6ly.



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