Sofia has a cake. She gave a friend 1/2 and gave another one 2/3. What’s the remaining of the cake?
1 answer:
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Answer:
B
Step-by-step explanation:
Use the formula for radius and circle circumference.
Since we know the diameter, if we divide that by 2, we can get the radius.
Now we can plug that value into the circumference formula to get the circumference.
*Since we're rounding to the nearest inch.
A full circle has a circumference of 2πr and an angle of 2π radians.
Set up a proportion:
2πr - 2π rad
2r - x rad
The answer is D. 2 radians.
Set up a proportion:
2πr - 2π rad
2r - x rad
The answer is D. 2 radians.