The complex numbers `z, iz ` and `z + iz`, where `z in C\ text(\{0})`, are plotted in the Argand plane, forming the vertices of a triangle.
The area of this triangle is given by
- `|z|`
- `|z| + |z|^2`
- `(|z|^2)/2`
- `|z|^2`
- `(sqrt 3 |z|^2)/2`
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