Mathway | Algebra Problem Solver
网页Free math problem solver answers your algebra homework questions with step-by-step explanations.
圆面积公式 - 百度百科
网页圆面积公式是一种定理定律。为圆周率*半径的平方，用字母可以表示为：S=πr²或S=π·（d/2）²。（π表示圆周率：3.1415926……，r表示半径，d表示直径）
Diameter of a Circle Calculator
网页2024年7月24日 · If you're wondering how to calculate the diameter of a circle, this diameter of a circle calculator is a perfect choice. You will need either the radius, the circumference, or the area of a given circle for the calculations. Take a look at the picture above the calculator to visualize each element.
Area of a Circle - Formula, Derivation, Examples - Cuemath
网页Area of Circle = πr 2 or πd 2 /4 in square units, where (Pi) π = 22/7 or 3.14. r = radius of the circle; d = diameter of the circle; Pi (π) is the ratio of circumference to diameter of any circle. It is a special mathematical constant.
Circle Calculator
网页2024年2月6日 · r = radius. d = diameter. C = circumference. A = area. π = pi = 3.1415926535898. √ = square root. Use this circle calculator to find the area, circumference, radius or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.
Step-by-Step Math Problem Solver
网页Solve an equation, inequality or a system. Example: 2x-1=y,2y+3=x. What can QuickMath do? QuickMath will automatically answer the most common problems in algebra, equations and calculus faced by high-school and college students. The algebra section allows you to expand, factor or simplify virtually any expression you choose.
Derivative Calculator - Symbolab
网页Free derivative calculator - differentiate functions with all the steps. Type in any function derivative to get the solution, steps and graph.
Graphing Calculator - Desmos
网页Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.
Symbolab - AI Math Calculator
网页Calculators and convertors for STEM, finance, fitness, construction, cooking, and more. Symbolab: equation search and math solver - solves algebra, trigonometry and calculus problems step by step.
Solve for d d-2.8÷0.2=-14 - Mathway
网页Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.
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