How to answer this question please?

3 answers
Question:

How to answer this question please?

[tex]How to answer this question please?[/tex]


Answers

Answer is letter b ——————-

Hello!

the answer is:

the correct option is the option b.

[tex]surfacearea=126\pi units^{2}[/tex]

why?

to calculate the surface area of the right cylinder, we need to use the following formula:

[tex]surfacearea=2\pi rh+\pi r^{2}[/tex]

from the picture we know that:

[tex]h=2units\\r=7units[/tex]

so, substituting and calculting we have:

[tex]surfacearea=2\pi rh+\pi r^{2}surfacearea=2*\pi *7*2+2*\pi *7^{2}=28\pi + 98\pi =126\pi units^{2}[/tex]

hence, we have that the correct option is the option b.

[tex]surfacearea=126\pi units^{2}[/tex]

have a nice day!

The equation is  125+22m=b

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