(Solved): 20. Find the radius of a spherical wedge whose volume is 12 with a central angle of 1.8 radians. a ...

20. Find the radius of a spherical wedge whose volume is 12 with a central angle of 1.8 radians. a. 2.25 b. 2.58 c. 2.96 d. 2.15 21. Find to the nearest integer, the surface area of rectangular solid with dimensions of 10 ft, 7 ft and 4 ½ ft respectively. a. 239 ft² b. 309 ft² c. 293 ft² d. 390 ft² 22. Find the area of a quadrilateral circumscribed about a circle of radius 7 cm if its consecutive sides are of 22 cm, 17 cm, 16 cm and 21 cm long. a. 240 cm² b. 286 cm² c. 312 cm² d. 266 cm²