Hello there! Circumference is pi * diameter. Radius is ½ of the diameter. In order to find the diameter, all you have to do is divide the circumference by pi (3.14). 84.78/3.14 is 27. Now, divide that number by 2 to get 13.5. There. The radius of the Brazillian coin is 13.5 mm.
Answer:
251.32741
Step-by-step explanation: Later Surface Area Formula: 2(pi)rh
The answer is the fraction is 66/100 or simplified, 2/3<span />
Answer: i dont understand
Step-by-step explanation:
Answer:
79.5%,
Step-by-step explanation:
each big square has 100 little squares inside, meaning there are 200 total between the two.
in total, 159 little squares are shaded.
if you divide, 159÷200= .795.
move the decimal to the right 2 spaces to get the answer of 79.5%
Hope this helps :)