Given:


Since R is the midpoint of the line, we can set XR equal to RY and solve for x.





Now we know what x is. We can plug in x to RY and XR and then add it all together to find XY. Let's find XR:


Let's find RY now:



Since we know that:

We can plug in our answers:

Final answer:

Answer:
12
Step-by-step explanation:
7x3=21
3x4=12
boOM
Hope This Helps
<3
Answer:
pretty sure this 76
Step-by-step explanation:
Theyre similar so answer is B
Answer:
The area of the enlarged triangle is
times the original area
Step-by-step explanation:
we know that
The scale factor is equal to divide the measurement of the length side of the enlarged triangle by the the measurement of the length of the corresponding side of the original triangle
In his problem
Let
x------> the length side of the original triangle
so
2x-----> is the length of the corresponding side of the enlarged triangle

-------> that means is increasing
The scale factor squared is equal to the ratio of the area of the enlarged triangle divided by the area of the original triangle
so
Let
m-------> the area of the enlarged triangle
n------> the area of the original triangle
r-------> scale factor

we have

substitute


therefore
The area of the enlarged triangle is
times the original area