Question

10. In a quadrilateral, CO and DO are the bisectors of angle c and angle D respectively
Prove that angle A + angle
B = 2 angle COD.​

Answer 1

Answer:

Step-by-step explanation:

In △COD,

∠COD+∠1+∠2=180  

o

 

∠COD=180  

o

−(∠1+∠2)

∠COD=180  

o

−  

2

1

​  

(∠C+∠D)

∠COD=180  

o

−  

2

1

​  

[360  

o

−(∠A+∠B)]

∠COD=  

2

1

​  

(∠A+∠B)

Answer 2

Answer:

now say the answer is right or not