Answer:
The value of variable r in the equation 
is 
Step-by-step explanation:
We need to find the value of variable r in the equation
Step 1: Write the equation
Step 2: Subtract 4 on both sides
Step 3: Divide both sides by 4
So, The value of variable r in the equation is
Answer:
depands
Step-by-step explanation:
on how much ppl
Answer:
2,3,6,7 from the top
Step-by-step explanation:
All the steps were correct except the final statement. The
mistake was in Line 6.
Line 6 triangle ABC is congruent to triangle EFD by
SAS.
<span>This does not follow. The SAS postulate states
that if two sides and the included angle of one triangle is congruent to two sides
and the included angle of another triangle. The student only proved that one side
of the triangle (AC) is congruent to the side of another triangle (EF) .</span>
