Question

Answer in explaination
(please Help)
i want answer in explaination .
how this answer will come (Method) Explaination
​

Answer 1

Step-by-step explanation:

We know that the sum of all angles of a triangle is 180°.

1. <A + <B + <C = 180°

50°+ <B +70° = 180°

120°+ <B = 180°

<B = 180° - 120°

<B = 60°

Hope it helps you!!!

You can do all parts by same method

Answer 2

Answer:

(I). Since, the sum of all angles of the triangle is 180°

Therefore, A+B+C =180°

50+B+70=180

120+B=180

B=60

(ii) Similarly,

120+20+R=180

140+R=180

R=40

(iii)60+60+C=180

120+C=180

C=60

Step-by-step explanation:

HOPE IT HELP YOU