Answer:
Option (4)
Step-by-step explanation:
Vertical angles theorem;
"Two vertically opposite angles formed by the intersection of two straight lines are congruent"
By this theorem,
If ∠1 and ∠2 are the vertical angles Given
∠1 ≅ ∠2 Vertical angles theorem
Therefore, Option (4) is the correct option.
Answer:
7. 130 + 150 = 280
360 - 280 = 80 degrees
Step-by-step explanation:
Check the picture below.
now, recall, both blades are congruent, thus a = b, so c² = a² + b² -> c² = b² + b².
The answer is This answer and this answer is B