The area of a triangle is the amount of space on the triangle
The expression that represents the area of the triangle is 
The coordinates of the triangle are given as:



The area (A) of a triangle from its coordinates or vertices are:

Substitute values for x's and y's

Hence, the expression that represents the area of the triangle is 
Read more about areas of triangles at:
brainly.com/question/9664477
Answer:
the answer is 400-8=394.
Step-by-step explanation:
Answer:
6(1-x) is the answer your looking for if I'm right
Answer:
Area = 45 km
Step-by-step explanation:
The area of a parallelogram = base * height
It is given that:
Base = 6 km
Height = 9 km
When these values are substituted into the are equation, the result is:
Area = 6 * 9
Area = 45 km
Hope this helps :)