Answer:
31 A
41 A
99 B
89 A
Step-by-step explanation:
Hey mate.....
This is ur answer....
<em>A. 31 - Acute</em>
<em>B. 41 - Acute </em>
<em>C. 99 - Obtuse </em>
<em>D. 89 - Acute</em>
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39-31=8
8÷4=2
n= 39
I'm pretty sure it is
48
8 * 6 = 48
C is the answer they are equal.