Answer:
option 1
as the sides were already given, A and D are the only way that the triangle can have SAS.
2/3
Step-by-step explanation:
Initially it would be 4/6 which you can simplify as 2/3
What strip?
c=l/--a^2+b^2=l/--45^2+20^2≈49.24429
l/-- mean square root
^ means squared/ exponent