Please answer these pages, im struggling alot on them

1. is D I think

2. B steep

3. She can plan were not to head because some areas could be too steep to climb or walk

4. Yes, because the closer the contour lines are together the steeper it is and the farther apart they are the easier it would be to climb

Explanation:

answer is  

loa ≅ lma

to prove that the triangles are congruent using the aas congruence