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=20*20
=400 cm²
L lingkarang yang akan dibuat = πr²
= 3,14.10.10
= 314 cm²
L persegi yang tdak digunakan = 400-314
=86 cm²
2. L pers panjang = p*l
= 20*16
=320 cm²
Llingkarang yg ditanam jagung = πr²
=3,14.8.8
=200,96 cm²
L yang tdak ditanm jagung = 320 - 200,96=119,04 cm²
3. l lingkaran = πr²
=3,14.10.10
=314 m²
l yg ditanam bunga = πr²
= 22/7.7.7
=154 cm²
l untuk ditanam rumput =314-154 =160 m²
3. 314 - 154 = 160