Practice and Problem-Solving Exercises

A Practice

See Problem 1.

8. Developing Proof Copy and complete the flow proof.

   

   Given: J K ¯ ≅ L M ¯ , J M ¯ ≅ L K ¯ j k bar , approximately equal to . l m bar , comma . j m bar , approximately equal to . l k bar

   Prove: Δ J K M ≅ Δ L M K cap delta j k m approximately equal to cap delta l m k

   
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9. Proof Given: I E ¯ ≅ G H ¯ , E F ¯ ≅ H F ¯ , i e bar , approximately equal to . g h bar , comma . e f bar , approximately equal to . h f bar , comma

   F is the midpoint of G I ¯ g i bar

   Prove: Δ E F I cap delta e f i ≅ Δ H F G cap delta h f g

   

10. Proof Given: W Z ¯ ≅ Z S ¯ ≅ S D ¯ ≅ D W ¯ w z bar , approximately equal to . z s bar , approximately equal to . s d bar , approximately equal to . d w bar

    Prove: Δ W Z D ≅ Δ S D Z cap delta w z d approximately equal to cap delta s d z

    

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