Make a sync method from async method [duplicate]

Suppose I had an async method like

public async Task<bool> GetBoolAsync() 
{
    // Do some stuff
    return await GetMyBoolFromSomeFunction(somestuff);
}

and I wanted a synchronous version, this compiles just fine, but is it the correct way?

public bool GetBool() 
{
    return GetBoolAsync().Result;
}

or if there were no return value,

public async Task DoSomethingAsync() 
{
    // Do some stuff
    await DoSomethingFromSomeFunction(somestuff);
}

public void DoSomething() 
{
    DoSomethingAsync().Wait();
}