Question

I don’t understand, can someone please help.

Answer 1

Answer: 40

Explanation:

Answer 2

x=20

Explanation:

All triangles has the sum of the internal angle equal to 180

2x+10+3x+x+50=180

Combine like terms

6x+60=180

Subtract 60 on both sides

6x=120

Divide 6 on both sides

x=20

Hope it helped :))