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s² = 7² + 24²
s² = 49 + 576
s² = 625
s = √625
s = 25
Lalas = πr²
= 3,14 7²
= 153,86
Lselimut = πrs
= 3,14 7 25
= 549,5
Lselimut - Lalas = 549,5 - 153,86 =395,64
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