WebA circular rug has a radius of 2.5m. What is the circumference of the rug to the nearest meter? 16m. 5m. 8m. 20m. 6. Fill-in-the-Blank. Please save your changes before editing any questions. 1 minute. 1 pt. Find the area of the circle. Leave your answer in terms of pi. 7. Multiple-choice. WebMay 18, 2024 · The area of a circle is related to the circle's radius by the formula: Area = πr 2. There are no units given for the 78.5, but I'll assume cm 2. Therefore: 78.5cm 2 = πr 2. r 2 = 78.5cm 2 /π. r 2 = 25.0 cm 2. r = ±5 cm. We'll chose r = 5 …
Circumference of a Circle (Perimeter of Circle) Formula - BYJU
WebPROBLEM 2. How much greater is the circumference of the circle with a dometer of 12m than another circle with a radius of 5m Step 1 - Reod and understand What is asked in the problema What do you know of the problem? Step 2 - Plan What must be done to solve the probleme Step 3 - Solve and answer Carry out the plan & write the final answer. WebC = circumference π = pi = 3.1415926535898 √ = square root Calculator Use. This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V … highland adult activity center
Circumference of a 5 Meter Diameter Circle - CalculateMe.com
WebJan 5, 2013 · What is the radius of a circle with circumference 5m? Radius of circle: 5/2*pi m. Area 9m x 5m? you do 9m x 5m =45m to easy. What is the area of the rectangle 9m x 5m? The area of a rectangle measuring 9m x 5m is 45 square meters. What is the radius of a cone with a area of 25m2 and a slant of 5m? WebMay 12, 2024 · Base circumference, C = 5.8cm. Required: Calculate Volume. The volume of a cone is calculated as thus; Volume, Where V, r and h represent the volume, the radius and the height of the cone respectively. But first we need to calculate the radius of the cone. Using formula of circumference. We have C to be 5.8cm. By substituting this value; … WebWhen the radius of a circle is known, the circumference can be calculated by using a formula. The formula is C = 2 π r, where C is the circumference and r is the radius. The value of π = 3.14159 (to 5dp). If a diameter is given use C = π d. This is the same formula, as 2 r = d. A circumference is a linear measurement; that is, it is a line. how is aurora formed