[填空题]
Joe creates a small basebamgwbx 7m)sfp3o i+* +y5rnc*kll field in his backyard to play6d: d h 3;,iw4zvqvpyhzdmo) 1 with his children. The field is covered by grass in the shape of a sector of a circle with radius 8 metres, as shown in the following diagram. The angle at the centre of qhw) mv1h3zddi d,p:;6o4z yvthe sector is $\theta^{\circ}$
A total of $48 m^2$ of grass was used to cover the field.
1.Find the value of $\theta$. $^{\circ}$
Joe asks his son, Lancer, to run around the field twice to warm up before playing a game.
1.Find the total distance that Lancer runs.d= m
