r = 14 cm. luas = ........ kell =

r = 14 cm

Keliling lingkaran
= 2πr
= 2 x 22/7 x 14
= 44 x 2
= 88 cm

Luas lingkaran
= πr²
= 22/7 x 14 x 14
= 22 x 2 x 14
= 44 x 14
= 616 cm²

luas .. phi x rxr : 22/7 x 14 x14 : 616 ..
keliling ... phi xd : 22/7 x 28 : 88. ...
maaf klo salah .. itu cba dihtng lg ..