AdalynaM285700 AdalynaM285700
  • 03-11-2022
  • Mathematics
contestada

Can you please help me

Respuesta :

RhealynA412254 RhealynA412254
  • 03-11-2022

The figure given is a sphere

A surface area of a sphere is given by

[tex]A=4\pi r^2[/tex]

The diameter of the sphere is given to be 42 cm

The radius of the sphere is half the diameter =

[tex]r=\frac{42}{2}=21\operatorname{cm}[/tex]

Substituting the value of r into the formula

[tex]\begin{gathered} A=4\times\pi\times21^2 \\ A=5541.8\operatorname{cm}^2 \end{gathered}[/tex]

The correct answer is option A

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