Step-by-step explanation:
mình nghĩ là như vầy. Chúc bạn học tôt :))))
Answer:
Je pense que je ne sais pas vraiment
Answer:
B) 12
Step-by-step explanation:
C is the circumference, d is the diameter, and r is the radius. They are related by the following equations:
d = 2r
C = πd = 2πr
If d = 6.0, then r = 3.0.
If C / C' = 0.25, then:
(2πr) / (2πr') = 0.25
r / r' = 0.25
3 / r' = 0.25
r' = 12
Answer: 10m+2
Explanation: perimeter = all the sides added together. Then simplify it. :)
