Question

please reply if you know

Answer 1

HEY MATE......☺☺
FOR IT.......☺☺

$Step - 1$
firstly find the whole area to be painted.....

i.e.
CSA of internal + CSA of external + Area of the edge..or ring

= CSA of ( internal+external) + area of (outer circle - internal circle)

$step - 2$

Now multiply the answer with the given cost.....

I HOPE IT IS HELPFUL...✌✌
PLZZZZZ MARK BRAINLIEST..☺✌☺

Answer 2

HEY ...
YOUR ANSWER IS.....

cost = total area × cost per unit area
(:- total area = area of inner hemisphere + area of outer hemisphere+ area of ring )

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i hope its helpful....☺✌☺