What is the formula for the area of a circle? A. A = πr B. A = 2πr C. A = πr² D. A = 4πr² 相关知识点: 试题来源: 解析 C。解析:文中提到“The formula for the area of a circle is A = πr².”。 反馈 收藏 ...
百度试题 结果1 题目 What is the area of a circle whose radius is the diagonal of a square whose area is 4? A. 2π B. 2π C. 4π D. 8π E. 16π 相关知识点: 试题来源: 解析 D 反馈 收藏
The center of a circle is the center point in a circle from which all the distances to the points on the circle are equal. This distance is called the radius of the circle. Here, point P is the center of the circle. Interior and Exterior of a Circle ...
What Is the Circumference of a Circle?Jason Marshall
252K Discover how to find the area and circumference of a circle. Learn the area of a circle formula, the circumference of a circle formula, how to calculate the circumference of a circle, and how to calculate the area of a circle. Related...
【题目】What is the ratio of the are a of Circle C to the are a of Square S if the lengths of a diameter of C an d a side of S are equal? A.π:1 B.π:2 C.π:3 D.π:4 相关知识点: 试题来源: 解析 【解析】D 反馈 收藏 ...
The table is in the shape of a circle. What's the meaning of “in the shape of”? A. like B. as C. similar to D. look like 相关知识点: 试题来源: 解析 A。“in the shape of”表示“呈……形状”,“like”有“像”的意思,比较符合语境。“as”作为介词通常表示“作为”;“similar ...
The circle is made up of points that are all of equal distance from a single central point. The distance of the point on the circle to the center is called the radius. The chord that passes through the center is twice the length of the radius and called the diameter....
Unit of Lenght: Calculate Circumference Result: The circumference of a circle with area 4π is 12.57(*) Formulas: r = 2 d = 4 C = 12.6 C = 2·π·r C = π·d C = √4·π·A π = 3.1415 A = area of the circle C = circumference or perimeter r = rad...
Area (A): Unit of Lenght: Calculate Circumference Result: The circumference of a circle with area 4π is 12.57(*) Formulas: r = 2 d = 4 C = 12.6 C = 2·π·r C = π·d C = √4·π·A π = 3.1415 A = area of the circle C = circumference or perimeter...