How do you convert these units?(geometry)?

Question

187cm^2=...m^2

18in^2=...ft^2

12yd^2=...ft^2

2.25ft^2=...in^2

i have never been good at converting this stuff....

Answer 1

Just type into google.com:

"187 cm^2 in m^2" for the first one for example.

Of course, it's probably a good idea to understand how to do it, in which case you would just look up the appropriate conversion factors and multiply.