1. Given
2. AD is parallel to BC
3. ∠3 ≅ ∠2
4. transitive property of congruence
5. Definition of bisect
Using the cosine function:

Solve for b:
Answer:
x^2 - 25 ✔
Step-by-step explanation:
(x+5)(x-5)
x(x-5) +5(x-5)
x^2 - 5x + 5x - 25
x^2 - 25
Answer: 79 easy do 14x5 then add 9 which equals 79
Answer:
They are all equal and identical in form; coinciding exactly when superimposed.
Step-by-step explanation: