6.3 Prove ∆s ~ by AA Mrs. Vazquez Geometry.

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Presentation transcript:

6.3 Prove ∆s ~ by AA Mrs. Vazquez Geometry

g-srt.1.3 Essential Question: How do I prove two ∆s ~? Objective: Students will be able to use AA ~ Postulate.

∡-∡(AA) ~ Postulate If two ∡s of one ∆ are ≅ to two ∡s of another ∆, then the two ∆s are ~.

Show ∆s are ~ ∡CDF = 58o ∡DFE = 90o ∆CDF~∆DEF (∆ Sum Thm) (Linear Pair) (AA)

A woman that is 5’4” casts a shadow that is 40” long A woman that is 5’4” casts a shadow that is 40” long. A child standing next to her is 58” tall. How long is the child’s shadow?