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1. find a a = 21° explain why using one of these words: adjacent, complementary, supplementary, vertical explanation goes here add a pic of your work (or just type it here) to s…

1. find a a = 21° explain why using one of these words: adjacent, complementary, supplementary, vertical explanation goes here add a pic of your work (or just type it here) to s…
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1 vote
1.

find a
a =
21°
explain why using one of these
words: adjacent,
complementary, supplementary,
vertical
explanation goes here
add a pic of your work
(or just type it here)
to show HOW you got your
answer
pic (or typing) goes Hereford

1. find a a = 21° explain why using one of these words: adjacent, complementary, supplementary-example-1
User JoelAZ
by
8.2k points

1 Answer

1 vote


21+a=90 \implies a=69^(\circ)

This is because the angles are complementary.

User Aherriot
by
8.6k points
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