Question

1. a square pyramid with base edge 80 m and slant height 100 m (1 point)44,800 m2
48,000 m2
16,000 m2
22,400 m2

2. a cone with slant height 22 cm and radius 7 cm (1 point)about 484 cm2
about 507 cm2
about 637 cm2
about 1,123 cm2

3. a sphere with radius 12 cm (1 point)about 904 cm2
about 576 cm2
about 452 cm2
about 1,809 cm2

Answer 1

SA = s^2 + 2sl
SA = πr^2 + πrl
SA = 4πr^2

Answer 2

use this formula and you will get the answer XD

Answer 3

Thanks I understand now, I figured out the answers. :)

Answer 4

that's good xD