Allied & ICAR Exam Bank • ALLIED_1938MCQ • 2 Marks
Section 8: General Aptitude
Analytical & Spatial Aptitude
Subtopic: Spatial Reasoning & 3D Representations
Question Statement:
A right triangle has vertices at (0, 0), (4, 0), and (0, 3). If it is reflected across the horizontal line y = -1, what are the vertices of the reflected triangle?
Options:
(A) (0, -2), (4, -2), and (0, -5)
(B) (0, -1), (4, -1), and (0, -4)
(C) (0, 2), (4, 2), and (0, 5)
(D) (-2, 0), (-2, 4), and (-5, 0)
Answer Key:
A
Step-by-Step Solution & Explanation
Reflection across horizontal line y = c transforms y to 2c - y. With c = -1: y' = -2 - y. For y = 0, y' = -2. For y = 3, y' = -5. Vertices: (0, -2), (4, -2), (0, -5).