Question

12. Find the value of x in each case.​

Answer 1

Answer:

Step-by-step explanation:

triangle abc

angle a + angle b+ angle c=180

50+90+angle c=180

angle c=40

triangle cde

angle c+ angle +angle e=180

40+85+angle d=180

x(angle d)=55

Answer 2

Answer:

220-360=140

140 -180=40