Question

If ab equals to zero and bc equals to 51 then cg equals to​

Answer 1

Answer:

Step-by-step explanation:

Correct option is

D

7

180  

∘

 

​

 

Let us assume, DAE = x  

Triangle ABC is isosceles as AB=BC−−>BCA=CAB=x

Hence, CBD=CAB+BCA=x+x=2x [External angle of triangle ABC]  

Triangle BCD is isosceles as BC=CD−−>CBD=CDB=2x

Hence, DCE=DAE+CDA=x+2x=3x [External angle of triangle ACD]  

Triangle CDE is isosceles as CD=DE−−>DCE=DEC=AED=3x

Similarly, ADE=EFD=AEF+DAE=EGF+DAE=(DAE+GFA)+DAE=DAE+DAE+DAE=3x

Hence, in triangle ADE,ADE+DAE+AED=3x+x+3x=7x

Hence, 7x=180−−−>x=180/7