Use the contracts to write expressions to generate images similar to those pictured. Go to WeScheme to test your code.

; ellipse :: (Numberwidth, Numberheight, Stringfill-style, Stringcolor) -> Image

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

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

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

Write an expression using ellipse to produce a circle.

; regular-polygon :: (Numberside-length, Numbernumber-of-sides, Stringfill-style, Stringcolor) -> Image

solid black pentagon

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

black outline of an octagon

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

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

How would you describe a regular polygon to a friend?

; rhombus :: (Numbersize, Numbertop-angle, Stringfill-style, Stringcolor) -> Image

solid black rhombus, wider than it is tall

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

black outline of a rhombus, taller than it is wide

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

Write an expression to generate a rhombus that is a square!

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