# Isosceles triangle

## Values for calculation

## Calculation

### Angle

### Polar moment of inertia

$\text{if }\ \cfrac{2}{3} < a/b < 2\cdot\sqrt{3}$### Angle of twist

### Torsion stress

## Requirements

$$ \cfrac{2}{3} < a/b < 2\cdot\sqrt3 $$**On this page**

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$$α=2\cdot\tan{\cfrac{a}{2\cdot b}}\cdot\cfrac{180}{π}$$

$$K=\cfrac{a^3\cdot b^3}{15\cdot a^2+20\cdot b^2}$$

$$K=0.0915\cdot b^4\cdot\left(\cfrac{a}{b}-0.8592\right)$$

$$θ=\cfrac{T\cdot 10^3\cdot L}{K\cdot G}$$

$$τ_{max}=\cfrac{T\cdot{10}^3\cdot b\cdot\left[0.2+0.309\cdot a/b-0.0418\cdot\left(a/b\right)^2\right]}{K}$$