pang jari2 lingkaran yg luasnya 1256cm adalah...(v =3,14)

Langsung aja y

L = πr²

1.256 = 3,14 × r²

r² = 1.256 : 3,14

r = √400

r = 20 cm

semoga berguna +_+

LINGKARAN


L = 1256
phi× r^2 = 1256
r^2 = 1256/phi
r^2 = 1256/3,14
r^2 = 400
r = akar400
r = 20 cm