1.diameter=5,6m
=560cm
Jari"=diameter÷2
=560÷2
=280
Luas=22/7×280×280
=880×280
=246.400cm
246.400cm=2.464m
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1.diameter=5,6m
=560cm
Jari"=diameter÷2
=560÷2
=280
Luas=22/7×280×280
=880×280
=246.400cm
246.400cm=2.464m
=22/7x2,8x2,8
=24,64
2.keliling= 2xπxr
=2x22/7x35
=220
Luas = πxrxr
= 22/7x35x35
=3850
3. panjang lintasan = 15xkeliling lingkaran
= 15 x π x d
= 15 x 3,14 x 20
= 942