Question

Please help!!!!

Find the surface area of the composite figure below to
the nearest tenth.

Answer 1

16801.2cm²

Explanation:

Cone :

SA = πrl

SA = π · 28 · 45 90-45 = 45

SA = 3958.406744

Cylinder :

SA = 2 · π · r · ( r+h)

SA = 2 · π · 28 ( 28 +45 )

SA = 2 · π · 28 (73)

SA = 12842.83077

12842.83077 + 3958.406744 =

16801.2cm²