Final answer:
No, AD is not the height of ABC because 28^2 + 45^2 ≠ 53^2.
Step-by-step explanation:
An isosceles triangle has two sides of equal length and two equal angles opposite those sides. The height of a triangle is a line segment perpendicular to the base that connects the base to the opposite vertex.
To determine if AD is the height of triangle ABC, we need to check if AD is perpendicular to BC. We can use the Pythagorean theorem to determine this.
Answer: No. AD is not perpendicular to BC. Option C, 28^2 + 45^2 ≠ 53^2, is correct. This means that AD is not the height of triangle ABC.