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1. They are supplementary angles

2. m<4 is 100 by vertical angles theorem

3.  m<5 is 100 since parallel lines form congruent angles

4. Alternate exterior angles are equal making the <b 38°

5. <9 and <10 are equal since they are corresponding angles and corresponding angles formed from parallels are equal. Complementary angles are those which add to 90°. Because they are complemenatary angles, their sum is 90 making each of them 45°

<9=45

6. IN a right triangle we know that one of the measures is 90° and sicne we know the other we can find the missing angle (third angle)

THe interior angles of any triangle add up to 180 and therefore 90+25+x=180

115+x=180

65=x

Step-by-step explanation:

0/5 is 0, 2/0 is undefined, and 0/0 is indeterminate.

step-by-step explanation:

hope my answer has you!

a and c

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