Answer:

Step-by-step explanation:
From the complete question, we have:
Length D to be perpendicular to side AC
So, the area of the triangle is:

Since:
Length D is perpendicular to side AC
Then:


So:

Answer:
A.
Step-by-step explanation:
When you multiply the two binomials using distributive property, you get the answer A. I could display the steps since it did not let me.
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Answer:
This is an 8 by 4 triangle
Step-by-step explanation:
It was asking for the dimensions of the rectangle
Answer:
0,-1
Step-by-step explanation: