ellipse:: Number, Number, String, String -> Image

black outline of an ellipse that’s about 3 times as tall as it is wide🖼Show image

Use the contract to write an expression that generates a similar image:

solid black ellipse that’s about 3 times as wide as it is tall🖼Show image

Use the contract to write an expression that generates a similar image:

What changes with the first Number?

What about the shape changes with the second Number?

Write an expression using ellipse to produce a circle.

regular-polygon:: Number, Number, String, String -> Image

solid black pentagon🖼Show image

Use the contract to write an expression that generates a similar image:

black outline of an octagon🖼Show image

Use the contract to write an expression that generates a similar image:

What changes with the first Number?

What about the shape changes with the second Number?

Use regular-polygon to write an expression for a square!

How would you describe a regular polygon to a friend?

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