Return to the Shape Area section . Area of a circle diameter. A 45 ° central angle is one-eighth of a circle. Then, find the area of one half the circle, a semi-circle, by dividing your final answer by 2. Use the information given to find the area of the circle. This is the diameter of a circle that corresponds to the specified area. For simplicity, you can use Pi = 3.14 or Pi = 3.1415. Geometry. A = Circle area; π = Pi = 3.14159… ø = Circle diameter; Diameter of Circle. The formula used to calculate circle area is: A = π x (ø/ 2) 2. Given that each person will receive 60° worth of the pie with a radius of 16 inches, the area of pie that each person receives can be calculated as follows: area= 60°/360° × π × 16 2 = 134.041 in 2. This is the diameter of a circle that corresponds to the specified area. For an example, we have an area of 303,000 square meters. The circle's area (A) will be calculated as you type. You can enter the diameter and then compute radius and circumference in mils, inches, feet, yards, miles, millimeters, centimeters, meters and kilometers. SURVEY . It may come in handy. What is the point of view of the story servant girl by estrella d alfon? Why don't libraries smell like bookstores? The Area and perimeter of a circle work with steps shows the complete step-by-step calculation for finding the circumference and area … Solution for If the radius of a circle is 9 in., find the radius of a circle whose area is 6 times as large. Just enter the value of the radius and hit calculate button. What are the qualifications of a parliamentary candidate? 50 cm squared. A circle of radius = 4.6 or diameter = 9.2 or circumference = 28.9 cm has an area of: 6.648 × 10-9 square kilometers (km²) 0.006648 square meters (m²) 66.48 square centimeters (cm²) 6648 square millimeters (mm²) 2.56681 × 10-9 square miles (mi²) 0.00795094 square yards (yd²) 0.0715585 square feet (ft²) 10.3044 square inches (in²) It doesn't matter whether you want to find the area of a circle using diameter or radius - you'll need to use this constant in almost every case. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Non-numeric characters will not compute. The formula to find the area of the segment is given below. ENTER ANY ONE VALUE: Radius : clear: Diameter : clear: Area : clear: Circumference : clear: Calculate Clear : Use the calculator above to calculate the properties of a circle. 201 cm squared. Use this easy and mobile-friendly calculator to compute the area of a circle given its diameter. 25 cm squared. The square of the radius is 36, and multiplying this by pi gives approximately 113.1 square inches. So for the 12 inch circle, the radius is 6. A circle of radius = 6 or diameter = 12 or circumference = 37.7 inches has an area of: 7.29676 × 10-8 square kilometers (km²); 0.0729676 square meters (m²) 729.676 square centimeters (cm²) Diameter = 9 inches Radius = r = diameter /2 = 4.5 inches For Circumference: C = 2.pi.r C = 2 . Area = … This will give you the cost per square inch of the pizza. Click the Clear button to clear both fields. A circle with a diameter of 14 feet 9 inches has an area of: 170.87 square feet. Considering the pizza is a circle figure we can say that the area can be found by using the formula: The circle has a diameter of 16 inches. A decimal can be used if the measurement is not a whole number. answer choices . Remember that: A=pir^2 The area of a circle is pi times its radius squared. What is the area of a circle with a DIAMETER of 9 inches (radius of 4.5 inches)? 11.1 inches. Algebra . Using the Diameter Calculator. 50.24 centimeters squared. Area of a Circle = π x (Diameter/2)^2 π = 3.142 Diameter (drop down ft, in, yd, cm, mm, m) Price per unit (drop down ft 2, in 2, yd 2, cm 2, mm 2, m 2) Understanding the Square footage: To understand how to calculate … Tags: Question 5 . If your impeached can you run for president again? BookMark Us. Similarly, the formula for the area of a circle is tied to π and the radius:. Diameter of Circle. A. The square of the radius is 36, and multiplying this by pi gives approximately 113.1 square inches. Circle area = Pai x Diam2 / 4 = 3.14 x 8 x 8 /4 sq inch = 50.24 sq inchAnother Answer:-Area of the circle: pi*42 = 50.265 inches to three decimal places The area of a circle that has a 12-inch diameter is: 113.1 square inches. Questionnaire. 201. Take 20.25 and multiply 3.14 circumference L Customer Voice. Diameter of Circle. All Rights Reserved. Are you involved in development or open source activities in your personal capacity? The answer is the composite figure has an area of 73.12 square inches… The diameter is always twice the radius, so either form of the equation works. Happy piday! A = Circle area; π = Pi = 3.14159… ø = Circle diameter; Diameter of Circle. For example, if a pizza costs \$32 and has an area of 256 square inches, you would calculate ÷ =. . Area of a Circle area = Pi * radius 2 Enter either the radius or the diameter. Area of a circle = π * r 2. which = 63.585 or orund the answer up to 63.86. 64 centimeters … SURVEY . radius r diameter R; area S . You can put this calculator widget on your website, web page or blog. Area of Circle. 5.6 inches. Question 1164064: A sector of a circle is enclosed by two 12.0-inch radii and a 9.0-inch arc. The area of a circle is pi (3.1415 is good for most calculations) multiplied by the square of the radius. Since the formula for the area of a circle squares the radius, the area of the larger circle is always 4 (or 2 2) times the smaller circle.Think about it: You are doubling a number (which means ×2) and then squaring this (ie squaring 2) -- which leads to a new area … The diameter of a circle is the circumference multiplied by 0.31831. In the second field, labeled “Depth (Inches)” enter the depth, in inches, of the cylinder. A circle is formed by combining a set of all points in a plane that are at a given distance from the centre point. Examples: If the depth is ten inches, enter “10”. Circle's True Area = π /4) × D 2 = (π /4) × 3 2 = 7.07 m 2 (to 2 decimals) The estimate of 7.2 m 2 is not far off 7.07 m 2. … 10.2. Which measurement is closest to the radius of the table top in inches? If you know the circumference, radius, or diameter of a circle, you can also find its area. The formula for the area of a sector is (angle / 360) x π x radius 2.The figure below illustrates the measurement: As you can easily see, it is quite similar to that of a circle, but modified to account for the fact that a sector is just a part of a circle. The area of a circle with an 8 inch diameter is: 50.27 square inches. An online geometry calculator to calculate the diameter of a circle based on the circumference. Circumference of the circle is equal to the twice of pi time radius of circle. Free calculator widget. Enter the diameter of a circle. Find the area with this circle area formula: Multiply Pi (3.1416) with the square of the radius (r) 2. 2 Answers Parabola Mar 15, 2018 Read below. To begin with, remember that pi is an irrational number written with the symbol π. π is roughly equal to 3.14. Half of 9 is 4.5, that is To run the calculator, hit the 'Calculate Circle Dimensions' button when … The area of a circle is the diameter x diameter x 0.7854. Circle calculator, formula, work with steps, step by step calculation, real world and practice problems to learn how to find the area, circumference & diameter of a circle in inches… While every effort is made to ensure the accuracy of the information provided on this website, neither this website nor its authors are responsible for any errors or omissions, or for the results obtained from the use of this information. Radius: Diameter: Circumference: Area: For help with using this calculator, see the shape area help page. answer choices . 2. Compute the area using these units: square mils, square inches, square feet, square yards, square miles, acres, hectares, square millimeters, square centimeters, square meters, and square kilometers. A 9-inch pizza is an example of a diameter: when one makes the first cut to slice a round pizza pie in half, this cut is the diameter of the pizza. 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