What is the surface area of a sphere with radius 4? A. 16 units2
B. 12x units 3
C. 3290 units2
D. 644 units2

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer