Question

6. Find the values of x in the following diagrams:
(ii)
MODEL II
(0)
x
40°
30°​

Answer 1

Answer: n ΔPQR,

∠RPQ+∠PQR+∠RPQ=180  

o

 [By angle sum property of a triangle]

⇒90  

o

+30  

o

+x=180  

o

 

⇒x+120  

o

=180  

o

 

⇒x=180  

o

−120  

o

=60  

o

.