Keliling lingkaran = 2 x π x r
[tex]44 = 2 \times \frac{22}{7} \times r \\ 44 = \frac{44}{7} \times r \\ 44 \times \frac{7}{44} = r \\ r = 7 \\ \\ luas \: lingkaran \\ \pi \times r \times r \\ \frac{22}{7} \times 7 \times 7 \\ 154 \: {cm}^{2} [/tex]
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Verified answer
Keliling lingkaran = 2 x π x r
[tex]44 = 2 \times \frac{22}{7} \times r \\ 44 = \frac{44}{7} \times r \\ 44 \times \frac{7}{44} = r \\ r = 7 \\ \\ luas \: lingkaran \\ \pi \times r \times r \\ \frac{22}{7} \times 7 \times 7 \\ 154 \: {cm}^{2} [/tex]