Geometria

1. C
2. SW; BE; PQR; ABF; CDF; BCE; 506,56
3. B
4. 112,5pi-300
5. 4,8
6. 15/17
7. 4; 35,06; I
9. D
10. x=0 e z=6; x=0 e z=0 e 0<=y<=2+2rz(5); (x-2)^2+y^2+(z-3)^2=9
11. (-3,3,1); (x,y,z)=(-2,-2,2)+k(0,3,-3); 36
12. y=-0.5x+5/2; y=3x-4; não
13. (-5,1,-1); (x,y,z)=(1,3,-4)+k(2,3,6); (x-1)^2+(y-3)^2+(z+4)^2=49; (1,15,-4)