100 POINTS FOR VERY HIGH MINDED PERSON FIND THETHA.
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Heya!
Step-by-step explanation:
Your answer ;
In triangle ABD and triangle ADC
AD=AD
AB=DC
BD=AC(other idea need to be used here)
THEREFORE,
BOTH THE TRIANGLES
Therefore,
Angle BAD= Angle ADC
Angle DBA= Angle ADC
THEREFORE,
You could find the answer by angle sum property
80+20+thetha=180
Therefore,
Theta =80*
Hope it helps!!
Mark as brainliest plz!
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