Question

geometry angle help! will mark brainliest!

find the value of angle c. explain/justify your steps.

a = 2x + 10
b = 3x + 20

thank u sm!! (*^▽^*)

Answer 1

a+b=180° because they are a linear pair

(2x+10)+(3x+20)=180
5x+30=180
5x=150
x=30

a=c because they are vertical angles

2(30)+10= C
60+10=C
70=C