Answer:
c. 16/35
Step-by-step explanation:
2/5 divided by 7/8
2/5 x 8/7
stay change flip
If you're finding diameter or radius based on circumference, use the formula C = πd. You would divide the circumference by pi to get the diameter, then divide the diameter by 2 to get the radius.
If you're finding diameter or radius based on area, use the formula A = πr^2. You would divide the area by pi, then find the square root of that value which is the radius. Just multiply the radius by 2 to find diameter.
First and third, second can still be simplified.
For a:
you have your opposite side
you need your hypotenuse
you should use the s.o.h