Answer:
When a point is reflected across the y-axis, the y-coordinate(s) remain the same. But the x-coordinate(s) is transformed into opposite signs.
Here, AB ║ CD ; EF ⊥ AB
Number of 90 degree formed by the intersections of EF and two parallel lines AB and CD is 8
Hope this helps!
4 floors with 6 class rooms each = 6*4 = 24 total class rooms.
24 class rooms x 34 students in each one = 816 total students.
The answer would be 71.45
