use value in photo and find the area of metal sheet for bucket
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Let r¹ = 5 cm
and r² = 15 cm
πr¹ + r²l + πr² ............... (1)
From diagram we have,
AB = CD = 5 cm
DE = 15 - 5 =10 cm
And BD = 24 cm
BE² = BD² + DE²
= √576 + 100
= √676 = 26 cm = l
Metal required =
= π ( 5 + 15 )26 + π (5)²
= π x 20 x 26 + π x 25
= 5π (4 x 26 + 5)
= 5π x 109
= 5 x 22 / 7 x 109
= 1712.85 cm²