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Page 1: Name: Conditional Forms Activity Writing Proofs...Name: Conditional Forms Activity Writing Proofs Directions: Write a proof for each of the following conjectures using the identified

Name: Conditional Forms Activity

Writing ProofsDirections: Write a proof for each of the following conjectures using the identified

conditional form.

1. Write a proof for the conjecture using the contrapositive.If 5x + 7 = -13, then x = -4.

2. Write a proof for the biconditional using the conditional and converse.A triangle is equilateral if and only if all the side lengths of the triangle are equal.

Page 2: Name: Conditional Forms Activity Writing Proofs...Name: Conditional Forms Activity Writing Proofs Directions: Write a proof for each of the following conjectures using the identified

Name: Conditional Forms Activity

Writing ProofsDirections: Write a proof for each of the following conjectures using the identified

conditional form.

3. Write a proof for the biconditional using the inverse and contrapositive.x ≥ 4 if and only if 3x ≥ 12.

4. Write a proof for the statement.If a quadrilateral is a square, then the quadrilateral is a rectangle.


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