Free Special Triangles: Isosceles and 30-60-90 Calculator - Given an Isosceles triangle (45-45-90) or 30-60-90 right triangle, the calculator will solve the 2 remaining sides of the triangle given one side entered.

This calculator has 6 inputs.

This calculator has 6 inputs.

Large Side = ?3 * Small Side

Hypotenuse = 2 x Small Side

For more math formulas, check out our Formula Dossier

Hypotenuse = 2 x Small Side

For more math formulas, check out our Formula Dossier

- right triangle
- triangle in which one angle is a right angle
- special triangles: isosceles and 30-60-90
- triangle
- a flat geometric figure that has three sides and three angles