Points, lines, and the coordinates between them. Shapes measured, plotted, and explained.
Find the midpoint between two points in a 2D plane.
Solve for the hypotenuse or a missing leg of a right triangle using a² + b² = c².
Find the slope between two points, plus the y-intercept and the line equation.
Find the area of a circle from its radius, diameter, or circumference using A = πr².
Find the volume of a cylinder from its radius and height using V = πr²h.
Calculate the area of a room or space in square feet from length and width.
Calculate the volume of a space in cubic feet from length, width, and height.
Find the circumference of a circle from its radius or diameter using C = 2πr.
Find the surface area of a sphere, cube, cylinder, or box from its dimensions.
Find the perimeter of a rectangle, square, triangle, or circle from its dimensions.
Find the distance between two points with √((x₂−x₁)² + (y₂−y₁)²), step by step.
Find the area of a triangle from base and height, or from three sides with Heron’s formula.
Find the volume of a sphere from its radius using V = 4/3·π·r³.
Find the volume of a cone from its radius and height using V = 1/3·π·r²·h.