Question

find the value of a and b from the figure ​

Answer 1

Answer:

a=50°

b=80°

Step-by-step explanation:

∠BDC=∠ABD=50° (Alternate interior angles are equal.)

∠BCD=b=180°-2a

in triangle BCD,

∠BCD+∠CDB+∠DBC=180°

=>(180°-2a)+50°+a=180°

=> -2a+a+50°=0

=> a=50°

So, b=180°-2a=180°-100°=80°

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Answer 2

Pls mark as brainliest answer