Answer:
23√2
Step-by-step explanation:
1. Simplify √8 to 2√2
19√2 +2* 2√2
2. Simplify 2*2√2 to 4√2
19√2 + 4√2
3. Simplify
23√2
Answer:
8. 
9. 
Step-by-step explanation:

^#8^

^#9^
Answer:
parallelogram, quadralateral, and rhombus
Step-by-step explanation:
A = 21/2 i will write something too just to fill up the space