Need help to dra triangle with round corners

[steenH797P]

Can anyone in the group help me to draw this sketch ?
diameter of all 3 part is 120 cm
I use Inventor 2019

[WHolzwarth]

Technically shapes like this are known as P3G profiles (DIN 32711).

I've done it with an equation curve. Similar shapes can be designed by changing parameter e (actually 0,63 with R=10)

[JDMather · Accepted solution]

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@WHolzwarth wrote:

Technically shapes like this are known as P3G profiles (DIN 32711).

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@WHolzwarth 

I haven't looked at the standard you referenced - but aren't there an infinite number of solutions with only the given information?

[WHolzwarth]

You're right, Jeffrey.

In my Equation curve, Parameter e shows similar behavior.