Question

The figure shown is a rectangular prism. Which edges are perpendicular to PR?

Select each correct answer.
(more than one answer)

• RA
• QT
• TR
• HP
• TJ

Answer 1

The correct answers are RA,TR and HP.

Answer 2

Therefore the correct options are 1, 3 and 4.

Explanation:

In a cuboid or cube, the two constitutive edges are perpendicular to each other.

From the given figure it is clear that the consecutive edges of edge PR are QP, HP, TR, RA.

It means the edges QP, HP, TR and RA are perpendicular to the edge PR.

`RA\perp PR`

`TR\perp PR`

`HP\perp PR`

Therefore the correct options are 1, 3 and 4.