You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
The answer is 49.3 cubic units, approx.
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.
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)
-8. alpha x 17.81
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.
Area of the sector: 50/360 times pi times 8 squared = 27.925 square cm to 3 dp
Area = Pi times the Radius squared -- pi x r^2Note: pi = 3.1415926535897932384626433832795Area = 3.14159 x 8^2Area = 201.06176 (units)^2
It looks like this:√x (2)3 · Σ πIt equals:i 8 sum Pi.
area = pi*8 squared
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.
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)
-8. alpha x 17.81
576cm squared.
The diameter is two times the radius. a diameter of 8 units is 16 units of radius. Since area is proportional to radius squared ( pi x radius squared) then the area ratio of the bigger circl is (16/2) squared or 8 x 8 = 64 times greater.
Well, 8 squared means 8 times 8. so yea, 8 times 8 equals 64
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.
3.14159*2.02*2.02*3.48*8=357 In words: pi are squared times stroke times number of cylinders.
The surface area of a (closed) cylinder equals the surface area of both bases (the top and bottom), i.e. pi x radius squared (first base) + pi x radius squared (second base), plus the lateral surface area (the surface area of the curved side), i.e. circumference (pi x diameter) x height. Inserting the numbers: SA = pi x (2 m.) squared + pi x (2 m.) squared + pi x 4 m. x 6 m. = pi x 4 m. squared + pi x 4 m. squared + pi x 24 m. squared = 8 x pi m. squared + 24 x pi m. squared = 32 x pi meters squared.