Referenced from lesson Restating the Problem

**Directions**: Write a function `circle-area-dec`

that takes in a radius and uses the decimal approximation of pi (3.14) to return the area of the circle.

Contract and Purpose Statement |

Every contract has three parts…

; _______________:_______->______

; ____________________________________________________________________________

Examples |

Write some examples, then circle and label what changes…

(EXAMPLE (_______________ __)_________________)

(EXAMPLE (_______________ __)_________________)

Definition |

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

(define (_______________ _______)

_______________________)

**Directions**: Write a function `circumference`

that takes in a radius and uses the decimal approximation of pi (3.14) to return the circumference of the circle.

Contract and Purpose Statement |

Every contract has three parts…

; _____________:_______->______

; ______________________________________________________________________________________

Examples |

Write some examples, then circle and label what changes…

(EXAMPLE (_____________ __)_________________)

(EXAMPLE (_____________ __)_________________)

Definition |

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

(define (_____________ _______)

_______________________)

These materials were developed partly through support of the National Science Foundation, (awards 1042210, 1535276, 1648684, and 1738598). Bootstrap:Algebra by the Bootstrap Community is licensed under a Creative Commons 4.0 Unported License. This license does not grant permission to run training or professional development. Offering training or professional development with materials substantially derived from Bootstrap must be approved in writing by a Bootstrap Director. Permissions beyond the scope of this license, such as to run training, may be available by contacting contact@BootstrapWorld.org.