The diameters of lower and upper ends of a bucket are in the form of frustum of a conr are 10cm and 30cm....If the heoght is 24cm thn find the area of metal sheet
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Step-by-step explanation:
H = 24 cm
R1 = 15 cm
R2 = 5 cm
L = h sq. (R1 -R2) sq. Whole root
Hence L = 26 cm
Area of metal sheet = CSA of frustum + base
area of bucket
=22/7 (15 +5 )26 +22/7 (5sq. )
=22/7 (26(20) +25)
=22/7 (520 +25)
=22/7 ×545
=11990/7
=1712.85 m sq.
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