Chapter 2.1, Problem 2PSA

a)

To determine

To find: the angle which can be proved to be right angle in each figure.

Answer to Problem 2PSA

  $\angle MJK$

Explanation of Solution

Given information: $JM\perp JK$

  $\angle OTS=\angle OTW={90}^{\circ }$ (given)

Hence $\angle MJK={90}^{\circ }$ but nothing can be said about any other angle

b)

To determine

To find: the angle which can be proved to be right angle in each figure.

Answer to Problem 2PSA

  $\angle ROP,\angle RON$

Explanation of Solution

Given information:

  $RO\perp PN$

  $RO\perp PN$ hence $\angle ROP=\angle RON={90}^{\circ }$ but nothing can be said about any other angle

c)

To determine

To find: the angle which can be proved to be right angle in each figure.

Answer to Problem 2PSA

  $\angle OTS,\angle OTW$

Explanation of Solution

Given information: $OT\perp SW$

  $OT\perp SW$ , hence $\angle OTS=\angle OTW={90}^{\circ }$