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Right Triangle Calculator
Base (leg a)
3.000
Units
Height (leg b)
4.000
Units
Hypotenuse
5.000
Units
Area
6.000
Square units
Perimeter
12.000
Units around the triangle
Aspect ratio
1.333
ऊँचाई ÷ आधार
Altitude & radii
- Altitude to hypotenuse
- 2.400
- Inscribed circle radius
- 1.000
- Circumcircle radius
- 2.500
Proportions
- Leg ratio (b ÷ a)
- 1.333
- Leg difference
- 1.000
- Complementary angles
- 53.13° / 36.87°
Scaled triangle diagram
Diagram scaled by longest leg for visual comparison.
Angle + trig breakdown
| Angle | Measure (°) | Sine | Cosine | Tangent |
|---|---|---|---|---|
| ∠A (base ↔ hypotenuse) | 53.130 | 0.8000 | 0.6000 | 1.3333 |
| ∠B (height ↔ hypotenuse) | 36.870 | 0.6000 | 0.8000 | 0.7500 |
| ∠C (right angle) | 90.000 | 1.0000 | 0.0000 | — |
Geometry insights
-
Scalene right triangle
All three sides differ in length, leading to complementary acute angles.
-
Pythagorean triple detected
Side lengths closely match the 3-4-5 integer triple.
-
Shape proportion
The triangle is taller than it is wide with an aspect ratio of about 1.33:1.
-
Inradius and altitude
The inscribed circle radius is 1.000 and the altitude to the hypotenuse is 2.400.
Quick reference
- Area is always half of base × height for a right triangle.
- Use sine and cosine to project any other lengths from the hypotenuse.
- Complementary acute angles always sum to 90°. Knowing one angle automatically gives the other.
