Answer:
21
Step-by-step explanation:
Answer:
I attached a pic of my work, its 100% correct.
Its a bit messy....
Answer:
18/20π
Step-by-step explanation:
81π ÷ 1 = 81π
81π ÷2 = 18/20π
You do this because the radius is half of the diameter and you need to get rid of the hight by dividing it from the volume.
Step-by-step explanation:
180 degrees is (-a, -b) and 360 is (a, b). 360 degrees doesn't change since it is a full rotation or a full circle. Also this is for a counterclockwise rotation. If you want to do a clockwise rotation follow these formulas: 90 = (b, -a); 180 = (-a, -b); 270 = (-b, a); 360 = (a, b)
It is 48 b/c you multiply 8*12 which you get 96. then divide it by 2 or you can multiply it by 1/2.
Have a good day,
Den :)
