If four coordinates are given then:-
- Find length of the sides using distance formula

- Now break down into two triangles .
- Use herons formula and find areas of the triangles .add them and get the area
Answer:
29,30,31
this is basically like counting just add 1
Answer:
d
Step-by-step explanation:
hope it helps
Answer:
for part A the answer is B and for part B I think the answer is B too.