Answer:
3 units
Step-by-step explanation:
Let the radius be x
Therefore, using pythagoras Theorem,
AB = 3
AB = AD
AB² + 4² = (AB + 2)²
AB² + 16 = AB² + 4AB + 4
combine like terms:
4AB = 12
2x^2 is your answer
One gallon of paint can cover up to 400 square feet. so mabye 4 or 5
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1.44m
:p