Answer:
the pole is 24 feet tall
Step-by-step explanation:
the mirror make every thing half its size
Since this is in the Mathematics subject my best answer would be Rational.
Start by adding together the shortest two sides, 7 and 8.7 inches. Result: 15.7 inches. Because this sum is greater than the longest side, 15.4 inches, it's possible to construct a triangle, whose largest angle will be close to 180 degrees.