Answer: X = 72°
Step-by-step explanation:
You have to use these statments :
For every triangle, the sum of their angle is equal to 180°.
Then, a line cut two parallel lines by forming angles of the same measures.
list of angles :
- first triangle : 51°, 103° => the third one is equal to : 180 - (51+103) = 26°.
-second triangle : 82°, 26°, => x = 180- (82 + 26) = 72
So x = 72°.
