Question

30°
B
Fig. 8.5
6. In Fig. 8.6, find ZACB and ZA and write which sides of AABC are equal
alues of Xand​

Answer 1

Answer:

sorry ..figure is not available bro☹️

Answer 2

Answer:In the fig,

ACB=ECD=109  

∘

 --------- vertically opposite angles

In △ABC

∠A+∠B+∠C=180  

∘

 

a+b=180  

∘

−109  

∘

=71  

∘

-------------(i)

In △CED

∠C+∠D+∠E=180  

∘

 

∠E=180  

∘

−109  

∘

−31  

∘

=40  

∘

 

GEF=CED=40  

∘

 --------- vertically opposite angles

In △GEF

∠G+∠F+∠E=180  

∘

 

g+f=180  

∘

−40  

∘

=140  

∘

-------------(ii)

Adding (i) and (ii)

a+b+g+f=71  

∘

−140  

∘

=211  

∘

 

Option B.