Answer:The slope of AB is - 2,
Slope of BC is
Slope of CD is
Slope of AD is ,
Step-by-step explanation:
Answer:
(1, -2)
Step-by-step explanation:
midpoint x = (x₁ + x₂) / 2
midpoint y = (y₁ + y₂) / 2

= (1, -2)
Answer:

Step-by-step explanation:
The formula for the area of a triangle is 
The triangles that can be made is the triangle that has legs 20 and 50 and the triangle that has legs 20 and 10.
Since there are 2 of each triangles, we get:

The answer that fits is the first option.
Answer:
Just calculate it. It is very easy.
Answer:
I think the answer is D
Step-by-step explanation: