In the complex plane, the distance from the point corresponding to the complex number 1 + 2I to the origin

In the complex plane, the distance from the point corresponding to the complex number 1 + 2I to the origin

A:
Is to find the modulus of complex number
|2i/(1+i)|
=|2i(1-i)/[(1+i)(1-i)]|
=|(2i+2)/(1+1)|
=|1+i|
=√2
Or:
|2i/(1+i)|
=|2i|/|1+i|
=2/√2
=√2

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