Calculate Area Result: The area of a circle with diameter 3.8 is 11.34 Formulae: r = 1.9 d = 3.8 C = 11.9 A = πr2 = π(d2)2 A = C24π π = 3.1415 A = area C = circumference or perimeter r = radius, d = diameter Solution Steps: Area of a circle in terms of...
Area (A): Unit of Lenght: Calculate Circumference Result: The circumference of a circle with diameter 4 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...
ashall have no more than three pits or zones of intergranular corrosion covering a circular area with a diameter greater than 0.4mm on the handle and not more than three pits each have an area greater than a circle of 0.4mm diameter elsewhere 将有没有比包括圆面积的晶间腐蚀三个坑或区域用...
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 ...
Circles- Formula for Area and Periphery :Circles are the two-dimensional shapes in which a central point contains a fixed distance from a round closed path and, this distance is uttered as the radius of the circle. The area of a circle is basically the space coverage by the circle ...
The Area of a Circle:A circle is a plane figure whose all the points on its boundary are at an equal distance from a fixed point. This point is the centre of the circle. The area of a circle is calculated as {eq}A = \pi r^2 {/eq}, where {eq}r {/eq} is the radius (the...
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× ...
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 = , d = ...
A piece of wire forms a semi-circle20cm Xwith diameter 20cm.The wire is then bent into a square with side length x.Calculate the size of x to 1 decimal place. 相关知识点: 试题来源: 解析 20×=62.83 62.83÷2=31.41cm 31.41÷4=7.9cm ...
The area of a circle with a circumference of 9.42 inches is7.061 square inches. Wiki User ∙14yago This answer is: Add your answer: Earn +20pts Q:What is the area of a circle with a circumference of 9.42 inches? Write your answer... ...