Question

please give me the fastest ​

Answer 1

Answer:

VERY EASY . ASAN HAI KOSIS KRO HOGYEGA

Answer 2

Step-by-step explanation:

We know that ,Sum of two interior angles is equal to opposite exterior angle.

so ,

angle ABD = angle A + angle C

= 140 ° = A+C

similarly , 80° = A+ B

Adding these two equations,

2A +B+C = 140 + 80

And , as we know that A+B+C = 180 .

hence, A +180 = 220

= A = 220 - 180 = 40°