They would want to use the larger number, which in this case is the median--21
The mean is a smaller number (20)
Angles 1 and 2 are supplementary because they add up to 180°
Answer:
Yes, this triangle is a right triangle.
Step-by-step explanation:
Side AB lies on the x-axis and is thus horizontal. Side AC lies on the y-axis and is thus vertical. Sides AB and AC are therefore perpendicular to each other. This alone is enough info for us to conclude that this is a right triangle.
Side BC could be thought of as the hypotenuse.
2+2=4 2 X 2 = 4 2 X 3 = 6
The answer is 9
both 81 and 63 are dividable by 9, and nothing higher