Notice that

, so

Then taking the positive square root gives

so
and
.
gfdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
The formula of the midpoint of HE:

We have H(0; 0) and E(2a; 2a). Substitute:
Answer:
20
Step-by-step explanation:
i did this on a hw equation