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What happens to the radius of a cone if a cone of say radius 8 cm is cut in half?
just do it regularly then divide the volume by four when you get the volume answer ============================================================= The original cone is say, 3 cm high and has a radius of 8 cm. the formula is pi times the radius squared times the hight, so pi*64*3=192pi. the second formula is 3*4 squared times pi, so 48pi, which is one fourth of 192 pi.
What is the volume of a cylinder with a radius of 9 cm and a height of 8 cm?
648pi. (pi = 3.14159...)Area of a circle = (pi) x (radius squared)= (pi)(9 squared) = (pi)81.Area of a cylinder = area of circle x height.= (pi)81 x 8= 648(pi)
What is PI to the negative alpha squared?
-8. alpha x 17.81
How do you find diameter of a circle with the area of 8in pi cm squared?
You use the formula A=(pi)r^2 solve for r which will give you the square root of A/pi. In your case the area has pi already in it so it is just 2 times the square root of 8.
What is the sector area of a circle that has a radius of 8 cm and has a subtended angle of 50 degrees at the circle's centre?
Area of the sector: 50/360 times pi times 8 squared = 27.925 square cm to 3 dp
