Kermit: The domain of gt is Number, String, String.

Oscar: The domain of gt is Number.

Ernie: I’m not sure who’s right!

In order to make a triangle, we need a size, a color and a fill style…​

but all we had to tell our actor was gt​(​20​)…​and they returned triangle​(​20, "solid", "green"​).

Please help us!

1 What is the correct domain for gt?

2 What could you tell Ernie to help him understand how you know?

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