Answer:
a. rectangle
...........
c.rhombus
I think it is a rhombus you just try it in a graph paper
1
Step-by-step explanation:
(1,1) to (2,2) and (2,2) to (3,3) and so on is (1,1)
the answer is V=(1/6)bh
3/8
x = both 25 and 20 + up witch is 45
