if a stamp costs 45 cents, what does a roll of 125 stamps cost in cents? what is your amount in dollars
1 answer:
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The radius is the distance from the center to any point. The distance from (2,1) to (0,1) is of course 2. The general formula for a circle with radius r and center (a,b) is
In our case we get
In our case we get
For the first one:
The radian of 60º is 1.047. you just have to find one that has the same value, which would be /3. (the last choice).
for the second one:
you do it the other way. The answer is 45 degrees.