objective: use aa conjecture and sss conjecture for similar triangles . gizmo
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Objective: Use AA conjecture and SSS conjecture for similar triangles . Gizmo. Warm up Are the triangles similar? a. b. Similar Triangles Conjectures AA SSS (three sets of corresponding sides are in proportion) - PowerPoint PPT PresentationTRANSCRIPT
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Objective: Short cuts for similar triangles.
Warm up
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2
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3a. Is this an enlargement or a reduction? Explain.
b. What scale factor do you think this is? Explain.
c. What angle is the same size as angle OBA? Explain.
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Investigation: AA
1
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2
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3.
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4
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SSS: Three sets of corresponding sides are in proportion.
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SAS: an angle is congruent to a corresponding angle. The lenghts of sides including these angles are in proportion.
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Example 1Are the triangles similar. Justify your answer.a.
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b.
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c.
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Similar Triangles ConjecturesAA
SSS (three sets of corresponding sides are in proportion)
SAS (two sets of corresponding sides are in proportion and the angles they include are congruent)
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Assignment: worksheet # 1-15