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lawyer [7]
3 years ago
14

In triangle ABCD, m What is m

Mathematics
1 answer:
djyliett [7]3 years ago
7 0
<span>Isosceles triangle because CA= CB
so <A = <B
4x + 5 = 5x - 1
        x = 6

</span><A = <B = 5(6) - 1 = 30 - 1 = 29
<span>
<C = 180 - 2(29)
<C = 180 - 58
<C = 122

answer
m<C = 122</span>°<span>

</span>
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Scorpion4ik [409]
Angle 1 is congruent to angles 3, 5, and/or 7

Angle 2 is congruent to angles 4, 6, and/or 8

Angle 5 is congruent to angles 7, 3 and/or 1

Angle 6 is congruent to angles 8, 4, and/or 2

Any of these answers could work for the blanks.


Angles 1 and 3, 2 and 4, 5 and 7, and angles 6 and 8 are congruent because they are vertical angles. They have the same vertex. Not all of these are congruent to each other if this doesn’t make sense. It’s only 1 is congruent to 3, 2 congruent to 4, etc.

Then you have your corresponding angles. These are ones like angles 2 and 6, then 1 and 5. You can also have 8 and 4, or 7 and 3 as corresponding angles

Transversal angles are different. This would be like angles 3 and 4, or 1 and 2. They are not always congruent. The only time they will be congruent is if they are both 90°. Transversal angles are essentially supplementary angles on the transversal line (the line that intersects through the set of parallel lines)












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What do you do on Brainly?
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