Tolong bantu jawaban tentang diameter dan jari-jari lingkaran:L=314 cm² (π= 3,14)
Luas lingkaran = phi x r²
314 cm² = 3,14 x r²
r² = 314 cm² / 3,14 = 100 cm²
r = √100 cm² = 10 cm
r = jari-jari = 10 cm
d = diameter = 2 r = 2 x 10 cm = 20 cm
Tolong bantu jawaban tentang diameter dan jari-jari lingkaran:L=314 cm² (π= 3,14)
Luas lingkaran = phi x r²
314 cm² = 3,14 x r²
r² = 314 cm² / 3,14 = 100 cm²
r = √100 cm² = 10 cm
r = jari-jari = 10 cm
d = diameter = 2 r = 2 x 10 cm = 20 cm