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Can you pls help me????

Can you pls help me????-example-1
User Andrew Ferrier
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2 Answers

14 votes
14 votes

Answer:

108

Step-by-step explanation:

User JoAMoS
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27 votes
27 votes

Answer:

The measure of non-reflex ∠DOB is 108° and the measure of reflex ∠DOB is 252°.

Step-by-step explanation:


DOB = AOD + AOC + COB \\\\3.5y = y + 180\\3.5y - y = y + 180 - y\\2.5y = 180\\(2.5y)/(2.5) = (180)/(2.5) \\y = 72\\

Hence y = 72, so in the equation replace y with 72.


3.5y \\3.5(72)\\252\\

DOB = 360 - 252 = 108

So, the angle DOB is 108 degrees and the reflex angle DOB is 252 degrees.

User Lives
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