What is the value of x?
x = 45°
x = 65°
x = 70°
x = 115°

The three inside angles of a triangle need to equal 180 degrees.
To find X subtract the two known angles from 180.
X = 180 - 45 - 70
X = 65 degrees.
Answer:
65 degrees.
Step-by-step explanation: You can add 45 and 70 to get 115 degrees. Then, you subtract 180 degrees by 115 degrees to get 65 degrees.