https://converter.tools/calculators/lengths/index.htmlFeet and inches algebra, Pythagorean, circle, triangle, rectangle.Hugoen-ushttps://converter.tools/calculators/lengths/feet-inches-calculator/index.htmlMon, 01 Jan 0001 00:00:00 +0000https://converter.tools/calculators/lengths/feet-inches-calculator/index.htmlAdd, subtract, multiply, or divide lengths in feet and inches. Example: 5'2" + 3'7" = 8 ft 9 in. Input as ft' in" or ft in. Copy result.https://converter.tools/calculators/lengths/pythagorean/index.htmlMon, 01 Jan 0001 00:00:00 +0000https://converter.tools/calculators/lengths/pythagorean/index.htmlFind the third side of a right triangle from two sides. Example: a=3, b=4 → c=5. Enter any two sides. Choose which side to solve for. Copy result.https://converter.tools/calculators/lengths/circle-circumference/index.htmlMon, 01 Jan 0001 00:00:00 +0000https://converter.tools/calculators/lengths/circle-circumference/index.htmlCalculate circle circumference from radius or diameter. Example: radius 5 → circumference 31.42. Formula C = 2πr or πd. Copy result.https://converter.tools/calculators/lengths/circle-area/index.htmlMon, 01 Jan 0001 00:00:00 +0000https://converter.tools/calculators/lengths/circle-area/index.htmlCalculate circle area from radius or diameter. Example: radius 5 → area 78.54. Formula A = πr². Copy result.https://converter.tools/calculators/lengths/triangle-area/index.htmlMon, 01 Jan 0001 00:00:00 +0000https://converter.tools/calculators/lengths/triangle-area/index.htmlCalculate triangle area from base and height, or from three sides (Heron's formula). Example: base 10, height 4 → area 20. Copy result.https://converter.tools/calculators/lengths/rectangle-area/index.htmlMon, 01 Jan 0001 00:00:00 +0000https://converter.tools/calculators/lengths/rectangle-area/index.htmlCalculate rectangle area and perimeter from length and width. Example: 5 by 3 → area 15, perimeter 16. Copy result.