Directions: Use the Design Recipe to write a function lawn-area that takes in the length and width of a rectangular lawn and returns its area.

Contract and Purpose Statement

Every contract has three parts…​

_________::______________->______

______________________________________________________________________

Examples

Write some examples, then circle and label what changes…​

examples:

___________ (______)__ is _______

___________ (________)__ is _________

end

Definition

Write the definition, giving variable names to all your input values…​

fun _________(_____________):

________________

end

Directions: Use the Design Recipe to write a function rect-perimeter that takes in the length and width of a rectangle and returns the perimeter of that rectangle.

Contract and Purpose Statement

Every contract has three parts…​

______________::______________->______

_____________________________________________________________________________

Examples

Write some examples, then circle and label what changes…​

examples:

________________ (______)__ is _____________

________________ (________)__ is _______________

end

Definition

Write the definition, giving variable names to all your input values…​

fun ______________(_____________):

______________________

end

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