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= π × r² × ( r + s )
= 22/7 × 7 × 7 × ( 7 + 25 )
= 154 × 32
= 4.928 cm²
s = garis pelukis
S = √ 24² + 7²
= √ 576 + 49
= √ 625
= 25 cm
Maaf jika salah!