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What is the value of d? I'm having a hard time with this one.​

What is the value of d? I'm having a hard time with this one.​-example-1

2 Answers

1 vote
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User Max Lapshin
by
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4 votes

Answer:

138°

Step-by-step explanation:

d and 42° are supplementary angles and their sum is 180°

d + 42 = 180

d = 180 - 42

d = 138°

User Ivan Proskuryakov
by
5.3k points