If a circle has a circumference of 3.253 cm, find: a) the diameter of the circle b) the area of the circle Round answers to three decimal places. Find the circumference of the given circle given a diameter of 40 cm. Find the area...
Here is the answer to questions like: how to find the perimeter of a circle with area 1,57 mm? Circle Calculator Inputs: Radius (r):or Diameter (d):or Area (A): Unit of Lenght: Result: The circumference of a circle with area1,57is3.545(*) ...
The area of a circle is:π (Pi) times the Radius squared:A = π r2 or, when you know the Diameter:A = (π/4) × D2 or, when you know the Circumference:A = C2 / 4πExample: What is the area of a circle with radius of 3 m ? Radius = r = 3 Area= π r2 = π× ...
结果1 题目What is the diameter of the circle with an area of π ft? Show your work.相关知识点: 试题来源: 解析 1 ft OR ft WORK SHOWN: A = πr, π = πr, r = = • , r = , d = (2) • = 1 1 ft OR ft WORK SHOWN: A = πr, π = πr, r = = • , r =...
How to calculate the area of a circle? Area of a circle formula So, let's see how to find the area of a circle. There are several ways to achieve it. Here, we can calculate the area of a circle using a diameter or using a radius. 💡 The diameter is the line that crosses the...
The diameter of a circle begins at one point in the circle, passing through its center (midpoint) and ends on the other side of the circle. If we know the diameter D the length of the circumference is determined by: l=π⋅D. The area of a circle gives us ...
百度试题 结果1 题目What is the diameter of a circle with an area of 25π mi? A: 5 mi B: 15 mi C: 10 mi D: 25 mi 相关知识点: 试题来源: 解析 C 10mi 反馈 收藏
In the figure shown, what is the area of the circular region with centerOand diameterBC? (1)BC/AB= 3/4 (2)BD= 25 选项: 答案: C 经典答疑 发起提问 提问: 点此查看答疑 这道题我选的B,因为条件2得知斜边是25,根据勾股数3 4 5,得知25刚好是5的5倍,那么短边AD即3*5=15,就是BC的长度,...
The total perimeter of the un-shaded part is made up of three sides of the rectangle and the perimeter of the half-circle. The area of a half circle = ½ π r2 8 π = ½ π r2; therefore r = 4 The perimeter of the half circle is ½ 8 π = 4 π The diameter of the ...
The area of a sector with a central angle α = 90° of a circle with radius r = 1 is π/4. To calculate this result, you can use the following formula: A = r² ·α/2, substituting: r = 1; and α = 90° ·π/180° = π/2. Thus: A = (1² ·π/2)/2 = π/...