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# Workbook 3A Lesson 3. Deductive Reasoning 3. Use the diagrams and information provided to complete the proof that the area of a trapezoid is h(Ll +...

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Workbook 3A Lesson 3.2: Deductive Reasoning ® 3. Use the diagrams and information provided to complete the proof that the area of a trapezoid is
h(Ll + L2)
2 . Diagrams and Information Explanation Hint: The sum of the areas of the smaller
pieces will equal the area of the trapezoid.
Your explanation will need to use the fact
that L2 = L1 + a + b as shown in the second
diagram. 20 ADLC Mathematics 20-2

Lesson 3.2: Deductive Reasoning Workbook 3A @ 4. Consider the following conjecture:
- The sum of two even numbers will be even. a. Give three examples supporting the conjecture. b. Prove the conjecture. [13 ADLC Mathematics 20-2 21

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4) 3. The area of the trapezoid equals the sum of the areas of the two small triangles and two small rectangles. 4) 4.... View the full answer

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