Question

Pls dear friend ans with step by step explanation very urgent do not post irrelevant answers if u i will report ​

Answer 1

Step-by-step explanation:

(i)

In triangle ACD,

A + C + D = 180°................Angle sum property of triangle.

60°+70°+D = 180°

130°+D =180°

D=180°-130°

D= 50°

So, value of c=50°

b+c=180°.............................Angles in linear pair

b+50°=180°

b=180°-50°

b=130°

So, value of b = 130°

In triangle ADB,

A+D+B=180°.........................Angle sum property of triangle.

30° + 130°+a = 180°

160°+a=180°

a= 180°-160°

a= 20°

So, value of a =20°.

In the same way you can try to solve (ii)

hope it helps