Question

Given that point D is in the interiro of

Answer 1

`\measuredangle ABC=\measuredangle ABD+\measuredangle DBC`

Step-by-step explanation

Step 1

draw a diagram of the described situation.

Now, we can see that due to point D is in the interior, the line BC divide the angle ABC into 2 angles, angles ABD and DBC

so, we can conclude

angle ABC is the sum of angles ABD and DBC

`\measuredangle ABC=\measuredangle ABD+\measuredangle DBC`

I hope this helps you