Triangle Calculator
Comprehensive triangle calculator: enter any 3 known values (sides and angles) to compute all properties — sides, angles, area, perimeter, heights, medians, inradius, and circumradius.
Enter at least 3 values (including at least one side)
How to Use the Triangle Calculator
- Enter the required dimensions (length, width, radius, height, etc.).
- The area, volume, or other geometric value is computed instantly.
- Review the result along with the formula used.
- Adjust dimensions to compare different scenarios.
حالات الاستخدام
- •Calculating dimensions for home improvement or DIY projects.
- •Solving geometry problems for school or professional exams.
- •Estimating material quantities needed for construction work.
- •Planning layouts and designs with precise measurements.
الصيغة
Uses the law of cosines (c² = a² + b² − 2ab·cos C), law of sines (a/sin A = b/sin B = c/sin C), and Heron's formula for area.
الأسئلة الشائعة
What values do I need to solve a triangle?
You need at least 3 values, including at least one side. Common combinations: SSS (3 sides), SAS (2 sides + included angle), ASA (2 angles + included side), AAS (2 angles + any side).
What are the inradius and circumradius?
The inradius is the radius of the inscribed circle (tangent to all sides). The circumradius is the radius of the circumscribed circle (passing through all vertices).
How are triangle types classified?
By sides: equilateral (all equal), isosceles (two equal), scalene (all different). By angles: acute (all < 90°), right (one = 90°), obtuse (one > 90°).
What is a median of a triangle?
A median connects a vertex to the midpoint of the opposite side. Every triangle has three medians, and they all intersect at the centroid.