Free Online Calculators · Page 5
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49–60 / 73Triangle from three sides
Calculate area, perimeter and angles from three valid side lengths.
Right triangle from legs
Calculate hypotenuse, acute angles and area from two perpendicular legs.
Circle measurements
Find diameter, circumference and area from a radius.
Ellipse measurements
Calculate ellipse area and Ramanujan’s approximate perimeter from semiaxes.
Polygon area and centroid
Calculate shoelace area, perimeter and area centroid of a simple polygon.
Regular polygon
Find area, perimeter, apothem and interior angle from equal side length.
Trapezoid area
Find area and midsegment from two parallel bases and perpendicular height.
Rectangle measurements
Find area, perimeter and diagonal from width and height.
Sphere volume and surface
Calculate volume and surface area from a sphere radius.
Cylinder volume and surface
Calculate volume and closed-cylinder total and lateral surface areas.
Cone volume and surface
Calculate a right circular cone’s volume, slant height and surface areas.
Rectangular prism
Find volume, surface area and space diagonal of a rectangular box.
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