Jawaban & Cara :
K persegi : 4 x Sisi
4 x 10
40 cm
L persegi : Sisi x Sisi
10 x 10
100 cm²
K 1/2 Lingkaran : 1/2 x π x r
1/2 x 3.14 x 5
7.85 cm
L 1/2 Lingkaran : 1/2 x π x r x r
1/2 x 3.14 x 5 x 5
39.25 cm²
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Jawaban & Cara :
K persegi : 4 x Sisi
4 x 10
40 cm
L persegi : Sisi x Sisi
10 x 10
100 cm²
K 1/2 Lingkaran : 1/2 x π x r
1/2 x 3.14 x 5
7.85 cm
L 1/2 Lingkaran : 1/2 x π x r x r
1/2 x 3.14 x 5 x 5
39.25 cm²