Question

Dik luas lingkaran 314cm
dit jari jari lingkaran?

Answer 1

Diket :
L = 314 cm²

Maka,
L = x r²
314 = 3,14 x r²
r² = 314 : 3,14
r² = 100
r = √100
r = 10 cm

Semoga membantu . . .

Answer 2

Luas lingkaran = 3.14 × r × r
314 = 3.14 × r"
r" = 314 : 3.14
= 100
r"= √100
r = 10