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Jawaban:
277cm²
Penjelasan dengan langkah-langkah:
L persegi panjang
= p×l
= 25×8
=200cm²
L1/2 lingkaran
= 1/2 × phi × r²
=1/2 × 22/7 × 7×7
= 77cm²
Luas gabungan = 200+ 77
= 277cm²