Diameter .........? Luas=78,5 cm Brp diameter....?? Pakaicara ya Lingkaran

jawabannya 10
caranya
[tex] \sqrt[2]{(4 \times 78.5) \div } 3.14 = [/tex]
[tex] \sqrt[2]{314 \div 3.14} = \sqrt[2]{100} = 10 \: cm[/tex]