Answer:
A and D have whole grid squares that are the same size and aren't over lapping
C has overlapping grid squares making it hard to count
B can't be used to find area because some of the grid squares are different sizes
You still could use B because four of the smaller squares seems to be equivalent to one of the larger squares
Step-by-step explanation:
A acute angle is always less than 90 degrees. So the answer is A.
1/4 in fraction form, or 0.4 in decimal
Answer:
Undefined.
Step-by-step explanation:


The denominator is 0. Therefore, the slope is undefined.