In a regular octagon it is impossible to have an acute angle!
Hope this helps!!
Answer:

Step-by-step explanation:
Incomplete question:
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<em>See attachment for complete question</em>
Required
Determine the equation to find x
First, is to complete the angles of the triangle (ABC and ACB)
--- angle on a straight line

Collect like terms


--- angles in a triangle

Collect like terms


Apply sine rule

In this case:

This gives:

The answer to your question is -1 < y < 3
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This will only be able to hold 153 dogs in total. He will need 1 additional truck to hold the last 7 dogs.