if its diameter is 8 cm, then its radius is half that, or 4 cm.

The greatest common factor for 5 and 10 is 5
75÷500 = 0.15 multiply with a hundred to get percentage equals 15℅
Answer:
a) 2√3 - 2√2
h) -11√2
Explanation:
You are combining all of the like terms, which are the terms with the same number underneath the radical.