Answer:
from left to right its square square rectangle
Step-by-step explanation:
408
31.5 units²
Area = ½*base*height
Height of the triangle on the grid = 9 units
Base = 7 units
Area = ½*9*7
Area = ½*63
Area = 63/2
Area = 31.5 units²
11,5,-2
is the answer. I hope it will help you.
