Example 2: Find the diameter of a circle with an area of 154 square units. Solution: The area of the circle is 154 square units. The area of circle formula is \({\pi}r^2\) \({\Rightarrow}154 ={\pi}r^2\) \({\Rightarrow}154=\frac{22}{7}r^2\) ...
from user unit = input("Enter the measure unit of diameter (e.g. in, cm) : ") # Finding area of a circle using ( A = 1/4 * /\ * D*D ) formula area = ((1 / 4) * (22 / 7) * (diameter * diameter)) # Printing the area print("Area of circle is : ",area,unit+"...
How to find the area of a circle using the diameter The formula to use if you know the diameter of the circle is area = (πd2) / 4, d is the diameter. The diameter of a circle is the distance from one point on the circle to another point on the circle and passing through the ...
The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.
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...
Area of a Circle Using Diameter | Formula & Examples from Chapter 1 / Lesson 8 148K Learn the formula for finding the area of a circle using the diameter with an applied example. Also, learn how to find the diameter and radius from the area. Related...
A quarter of a circle is... Learn more about this topic: Area of a Circle Using Diameter | Formula & Examples from Chapter 1/ Lesson 8 146K Learn the formula for finding the area of a circle using the diameter with an applied example. Also, learn how...
To find the area of a circle, you take pi times the radius squared, or A = pi r^2. Using this formula, you can find the area of a circle if you know the radius — or the diameter — by plugging in your values and solving for A. Pi is approximated as 3.14. ...
The formula to find the area of a circle given its diameter is: A = π× (d/2)² The areaAis equal to pi times the diameterddivided by 2, squared. Find Area Using Circumference The circumference of a circle is the length of the outer edge around its perimeter. The formula to find...
C. 36 D. 9π E. 18π 相关知识点: 试题来源: 解析 B The formula for the area of a circle is πr2. Therefore, the radius of this circle is the square root of 81, or 9. The diameter is twice the radius, so 18.反馈 收藏 ...