Question

please say me 25 one with process.....​

Answer 1

Answer:

A + AEC + ECA = 180

A + 90 + 20 = 180

A = 70

NOW,

A + ABD + BDA = 180

70 + 50 + BDA = 180

BDA = 70

Answer 2

Answer:

in triangle AEC total sum of angles in triangle is 180 degrees so angle A plus 90 degrees plus 20 degrees is 180 degrees

so angle A is 70 degrees

again in triangle ABD total sum of angles is 180 degrees so angle D plusangle A plus angle B so angle D plus50 degrees plus 70 degrees is equal to 180 degrees

so angle is 60 degrees

60 degrees is your answer

hope it helped you