C^2-a^2=b^2 b^2=81-36=45 x^2/36-y^2/45=1?
Answer:
The answer is 50.24
Step-by-step explanation:
C=2Лr
C=16Л
C=50.24
1 whole thing = 6 sixths
3 whole things = 18 sixths
1 third of a whole thing = 2 sixths of it
3 wholes plus 1 third = 18 sixths plus 2 sixths = 20 sixths