Total surface area of a solid hemisphere is

a.) 3 Ir²
b.) 2 Ir2
c.)4Ir2
d.)2/3 Ir3

Idont knowgfdhdhfhggg.

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.