Answer:
In triangle AB, A and B are acute angles so. AC and BC are right angles.
Sin A = 10/13
13 is the hypotenuse side and 10 is the opposite side.
To find cos A.
From pythagorean theorem:
Step-by-step explanation:
Answer:
Option 2
Step-by-step explanation:
1/4 is equal to .25 or 25/100
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Answer:
5
Step-by-step explanation:
Replace 20 instead of m
20/4=5