Geometry Foundational

Special Right Triangles — 30-60-90 & 45-45-90

Choose a triangle type and which side is known. The calculator finds all other sides using the exact ratio, showing both the exact surd form and decimal approximation.

30-60-90 and 45-45-90 types
Exact values (e.g., 5√3)
Labeled triangle diagram
Inputs
Ratio: x : x√3 : 2x
All Sides
Select a triangle type and enter a side value.
Step-by-Step Solution
Diagram
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