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°
30%
ZT
40°
20°
a
R
S
= 70°
In A RTS
Fig. 3.4
ZTRS + ZRTS + ZTSR=_____
sum of all angles of a triangle
_______+ ZRTS +_______
180°
... ZRTS +90° = 180°
.. ZRTS =_______

answer the blank
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Answer 1

Step-by-step explanation:

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