Table of Contents
What is the radius of a right circular cylinder?
Solution: Since, internal radius = 8 cm π r = 8 cm, thickness of the wall of the cylinder = 2 cm. ∴ Its external radius = 8 cm + 2 cm = 10 cm i.e., R = 10 cm. Also, length (height) of the cylinder = 42 cm i.e., h = 42 cm.
What is the curved surface area of right circular cylinder?
Curved surface area of a right circular cylinder is 4. 4 m2 If the radius of the base of the cylinder is 0.
How do you find the radius of a curved surface of a cylinder?
- Given : Height =16 cm.
- Curved surface area =352 cm2.
- Curved Surface area of a cylinder =2πrh.
- ∴2πrh=352.
- ⇒2×722×r×16=352.
- ⇒r=352×21×227×161=27=3. 5 cm.
- Hence, radius of the cylinder is 3. 5 cm.
How do you find the area of a right circular cylinder?
Calculate the surface area of a cylinder by using the formula SA=2πr2+2πrh, where r is the radius of the circular base and h is the height of the cylinder. Ex. Find the surface area of this cylinder. Find the surface area by using the formula SA=2πr2+2πrh.
How do you find the base radius of a right circular cylinder?
Given height and surface-area-to-volume ratio: r = 2 * h / (h * SA:V – 2) , Given volume and lateral area: r = 2 * V / A_l , Given base area: r = √(A_b / (2 * π)) , Given lateral area and total area: r = √((A – A_l) / (2 * π)) .
What is the radius and curved surface area?
Therefore the curved surface area (CSA) of the cone = 616cm2. Now as we know that the formula of the CSA of the cone = πr′l square units, where r’ and l is the radius and slant height of the cone respectively. Now the slant height of the cone is equal to the radius of the circle. Therefore, l = r = 28 cm.
How do you find the volume of a right circular cylinder?
The sum of the lateral surface area and the base area of both the circles will give the total surface area of the right circular cylinder. The volume of a right cylinder is given by the product of the area of the top or bottom circle and the height of the cylinder.
What is the lateral area of the right circular cylinder?
The curved surface that joins the two circular bases is said to be the lateral surface of the right circular cylinder. Lateral or Curved Area = 2 π r h square units
How do you find the curved surface area of a cylinder?
Curved Surface Area The surface area of a closed right circular cylinder is the sum of the area of the curved surface and the area of the two bases. The curved surface that joins the two circular bases is said to be the lateral surface of the right circular cylinder. Lateral or Curved Area = 2 π r h square units
How many bases does a right circular cylinder have?
A right circular cylinder has two circular bases which are of the same radius and are parallel to each other. The formulas for surface area, curved or lateral surface area and volume of the right cylinder are discussed here.