PQRS is a desk of dimensions 2m x 0.8 which is inclined at 30o to the horizontal. Find the inclination of the diagonal PR to the horizontal
Attached Figure / Diagram
A
30o 35'
B
30o 32'
C
15o 36'
D
10o
E
10o 42'
Verified Correct Answer: E.
Step-by-Step Mathematical Solution
tan\(\theta\) = \(\frac{0.8}{2}\) = (0.4)
\(\theta\) = tan-1(0.4)
From the diagram, the inclination of the diagonal PR to the horizontal is 10o 42'
Source: Myschool Past Questions Archive (Record #32769)