6. Find the surface area of a cylinder whose base is 9 cm in radius and the height is 10 cm A. 1, 103.88 cm2 C. 1, 073.88 cm B. 103.88 cm2 D. 10.388 cm

7. Find the surface area of a cone whose base is 30 cm in radius and whose slant height is 20 cm. A. 4, 710 cm2 B. 407 cm2 C. 471 cm2 D. 417 cm

8. Find the surface area of a wooden cube whose side is 2 meters. A. 24 m2 C. 240 m2 B. 2 420 m2 D. 2 400 m2​