Question

someone help plss :))

Answer 1

Answer:

Step-by-step explanation:

the answer is 50.  :)

Answer 2

x+(x+70)+(x+20)=180° [ANGLE SUM PROPERTY OF A TRIANGLE]
= 3x+90= 180
= 3x= 90
= x= 30

So m angle R is x+20=30+20= 50°

The answer is thus 50°