Answer:
A is correct because 1 and 3 are vertical angles.
B is correct because there are 180 degrees in a triangle. 180-65-55 = 60. Angle 2 is vertical to the third angle, so angle 2 equals 60.
C is incorrect because it is an exterior angle. Exterior angles are equal to the sum of the two isolated interior angles. 65 + 55 ≠ 60.
D is correct because 3 is an exterior angle. Exterior angles are equal to the sum of the two isolated interior angles. 65 + 55 = 120.
In review, A, B, and D are correct.
I hope this helps you =)
Answer:
45
Step-by-step explanation:
90+2x=180
2x=180-90
2x=90
x=90/2
x=45
Answer: x=2.5y-7
Step-by-step explanation:
Subtract 10 from both sides, resulting in 2x=5y-14
Divide both sides by 2 to isolate the x, resulting in x=(5/2)y-7
Yes, the above statement is True.
Answer:
-0.5 and -1/2; 11/20 and 0.55; -1/50 and -0.02
Step-by-step explanation:
