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Semoga Bermanfaat ^^
-Dik: r= 14cm
jawab:
L. 1 lingkaran = πr²
= 22/7×14²= 616
L.lingkaran tidak diarsir
- 1/4×πr²
-1/4×22/7×14²
-1/4×616
-154
jadi:
luas bangunan yg diarsir= 616-154=462cm²
maaf ya kalo salah^^