Curved surface area = 2*pi*radius*height
= 2*3.14*1*3 = 18.84 square feet
Area of the 2 ends = 2*pi*radius2
= 2*3.14*12 = 6.28 square feet
Total surface area = 18.84+6.28 = 25.12 square feet.
The word "base" is just fine for this purpose.
A circular plane surface
A cylinder has two parallel, usually circular bases connected by a curved surface.
It's a rectangle.
The surface area of the base = Pi x r2 = Pi x 9 cm2 But to calculate the surface area of a cylinder you also need to know its height. The cylindrical surface area will be Pi x 2r x height = (in this case) Pi x 6 x height.
150
The word "base" is just fine for this purpose.
A circular plane surface
Volume of a CylinderThe volume of a cylinder is the product of the area of its base and its height. Because a cylinder has a circular base, the volume of a cylinder is: Pi x r squared x hwhere r is the radius of the circular base and his the height.
The question cannot be answered since the base of a cylinder is a circular area whose measurements should be in square units.Furthermore, the question contradicts itself. If the radius is 4 cm then the base cannot be 50 cm^2 and if the base is 50 cm^2 then the radius cannot be 4 cm.Finally, there is no information on the height of the cylinder.
A cylinder has two parallel, usually circular bases connected by a curved surface.
Yes, a cylinder has both curved and flat surface. Considering a solid cylinder standing on its end, the circular base and the circular top are flat surfaces. The surface connecting the top and bottom is curved.
a cylinder has to have a circular base because it is a circular prism
It's a rectangle.
Strictly, if it has a circular base, it is a circular cylinder. Otherwise, it could have an oval base. If the long axis is at right angles (perpendicular) to the plane of the base, then it is a right circular cylinder.
The surface area of the base = Pi x r2 = Pi x 9 cm2 But to calculate the surface area of a cylinder you also need to know its height. The cylindrical surface area will be Pi x 2r x height = (in this case) Pi x 6 x height.
cylinder is the name for a circular prism