Question

Ex (2) Observe figure 3.4 and find the measures of ZPRS and ZRTS.
Solution :
ZPRS is an exterior angle of A PQR.
So from the theorem of remote interior angles,
ZPRS = ZPQR + ZQPR
= 40° + 30°
= 70°
In A RTS
Fig. 3.4
sum of all angles of a triangle
ZTRS + ZRTS + ZTSR =180
..+ ZRTS + 180°
... ZRTS + 90° = 180°
... ZRTS​

Answer 1

Step-by-step explanation:

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