General formula for area of triangle is 
.
Where:
is height of triangle perpendicular to base side of triangle.
is the length of base side of triangle.
Multiplying and results in rectangle, dividing that by 2 gives you area of a triangle.
Hope this helps.
Answer:
the answer to it is A. 75
Answer: Responding for points
Step-by-step explanation:
Answer:
9y= -9-2x
y=-(2/9)x-1
Step-by-step explanation:
