Hey guys! a friend and I are confused and could really use the help. could you explain why? thanks!

Mathematics

2 answers:

ziro4ka [17]2 years ago

7 0

Answer:cant see it

Step-by-step explanation:

Tanya [424]2 years ago

5 0

Answers:

substitution
definition of perpendicular

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Explanation:

The first dropdown box is "substitution" because we are replacing, aka substituting, the $m \angle UXV$ with $m \angle TXU$ . This replacement is valid because we are given that $\angle TXU \cong \angle UXV$ . They are congruent angles.

The second dropdown box is "definition of perpendicular". If we have a 90 degree angle like this, then the two lines are considered perpendicular simply by definition.

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Step-by-step explanation: