Step-by-step explanation:
the opposite angles are always same.
Answer: 16
Step-by-step explanation:

Let's complete the square.



Answer:
Step-by-step explanation:
1/2 because the triangle represent half of the shape.
Answer: 70%
Step-by-step explanation:
Step 1:
Total number of teachers = 63 + 27
= 90
Step 2:
The percentage of the teachers in the meeting were first-year teachers:
(63 ÷ 90) × 100 = 70%