nomer 11,14 aja pake caraya nya

5 × 2⅓ = 5/1 × 7/3 = 35/3 = 11 ⅔

kell = 22/7 × 7 = 22
luas = 22/7 × 3,5 × 3,5 = 38,5

semoga membantu

11. 5 x 2 1/3= 5 x 7/3 = 35/3
14. diameter = 2 maka jari jari(r)=1, phi=3,14
keliling lingkaran 2.phi.r= 2x 3,14x 1= 6,28
luas lingkaran phi x r^2= 3,14 x 1^2= 3,14