WebDec 30, 2016 · The circumference is the same in both cases if you don't assume the circle's diameter needs to follow the surface of the sphere. However, if you draw the circle's diameter on the surface of the sphere, it is curved, so the straight (true) diameter is less than the curved diameter. WebDec 15, 2024 · 1. Use the formula C = πd to find the circumference if you know the diameter. In this equation, "C" represents the circumference of the circle, and "d" …
calculus - Why does a circle enclose the largest area?
WebSolution: 2 Similarity of triangles. In this solution we approximate the circumference of a circle using polygons and then use similarity of triangles to explain the formula for the circumference of a circle. Below is a picture of a regular octagon inscribed inside a circle of radius : The circumference of the circle is a little bit more than ... WebDec 1, 2024 · If the circumference of a circle is 82π, then the value of ‘r’ is (i) 41 cm (ii) 82 cm (iii) 21 cm (iv) 20 cm asked Dec 1, 2024 in Measurements by Maira01 ( 27.4k points) measurement earwel ear drops
Circumference of a circle is always little more thanthe …
WebJan 3, 2024 · Here, the value of π is approximately 3.14 (which is slightly greater than three) and D is the diameter of the circle. While calculating the circumference of the circle, π is being multiplied with the diameter, and π is slightly greater than 3. That's why, we can say that the circumference is greater than thrice of the diameter. [(π × D ... Web5 years ago. You just need to use the equation. First, find the equation for the circle. Like this, x^2 + (y - 3)^2 = 9. Then, input the x and y values into the equation. If it's bigger than 9, the point is outside of the circle, if it's equal to 9, the point is on the circle, and if it's smaller than 9, the point is inside of the circle. WebAs we know, the circumference (or) perimeter of a circle = 2πr units. The area of a circle = πr 2 square units. Now, substitute the values in the perimeter and area of circle formula, … cts sentinel