Tentukan keliling lingkaran jika diketahui diameterny! a.42 cm b.224
Triksking
Keliling lingkaran itu rumusnya 2πr atau πd maka a. keliling = πd => 22/7 x 42 => 22x6 =>132 cm b. keliling = πd => 22/7 x 224 => 22 x (224/7) => 22 x 32 => 704 cm
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poibeRYSusa.K = πd = 22/7 x 42 cm = 132 cm b.K = πd = 22/7 x 224 cm = 704 cm
maka a. keliling = πd => 22/7 x 42 => 22x6 =>132 cm
b. keliling = πd => 22/7 x 224 => 22 x (224/7) => 22 x 32 => 704 cm
b.K = πd = 22/7 x 224 cm = 704 cm