Radius Formula from Circumference Theperimeterof a circle is called its circumference. It is the boundary of a circle and can be expressed by the formula: C = 2πr. Here, C is the circumference, r is the radius of the circle, and π is the constant which is equal to 3.14159.The radi...
If the area of a circle is 36π square centimeters, what is the radius of the circle? The formula for the area of a circle is A = πr². A. 6 centimeters B. 8 centimeters C. 4 centimeters D. 10 centimeters 相关知识点:
Calculating the total area of your pizza is easy with the right formula. Maksim Denisenko/Shutterstock Use the following formula to calculate circle area: A = πr². Simply square the length of the radius (r), then multiply that number by pi (π). Let's clarify a few things. A cir...
What is the formula for calculating the area of a circle? The formula for calculating the area of a circle is πr^2, where r is the radius. 用what感叹句造句 用what 感叹句造句 1. What a beautiful sunset! The sky was painted with shades of pink, orange, and purple, creating a breath...
A. diameter B. radius C. circumference D. area 相关知识点: 试题来源: 解析 B。本题考查圆的面积公式中各个字母的含义。'r'在圆的面积公式 A = πr²中代表半径(radius)。A 选项 diameter 是直径;C 选项 circumference 是周长;D 选项 area 是面积。反馈...
The second circle has a diameter of 3, so it has a radius of 32. Plug this value into the area formula for a circle:A= π r^2= π (32)^2=94 πNow add the two areas together:9π +94 π =(36)4 π +94 π =(45)4 πTherefore, the right answer is (E)....
Half of the diameter D. Double of the diameter 相关知识点: 试题来源: 解析 C。在计算圆的面积公式中,“radius”指“半径”,即直径的一半,选项 A“Diameter”指“直径”,选项 B“Circumference”指“周长”,选项 D“Double of the diameter”指“直径的两倍”,均不符合“radius”的意思。反馈 收藏 ...
The article offers information on the radius of a circle. It presents the quadratic formula of a circle which gives one the option on which to reject since the other one is positive. It notes that not all integral values will yield a positive integral value for the radius. Also, an ...
What is the radius of a sphere with its center at the origin and contains the point (2,3,4)? Distance Formula: The distance formula is the formula that is used to determine the shortest distance between the two points in the space by assuming the two points...
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