Answer:
See below ↓
Step-by-step explanation:
11)
- AB = AC [as angles opposing them are equal]
- AB = 4 cm
- B is the answer
12)
- x/2 = 9/3 [they are in proportion across the transversal]
- x = 2 x 3
- x = 6
- C is the answer
13)
- Let the missing side lengths (which are equal) be x
- x² + x² = (2√2)²
- 2x² = 8
- x² = 4
- x = 2 [length is always positive]
- A is the answer
There is a rule on Brainly which states you can only answer 3 questions maximum per post.
So I can only help with you this much.
Hope this helped~
