Answer & Step-by-step explanation:
This can be proven with the SAS theorem (side-angle-side)
With a perpendicular bisector, the line it bisects is cut directly in half. This creates two equal sides:
and it creates two 90° angles:
∠
∠
And because of the reflexive property of congruence:

Side-Angle-Side.
:Done
BC would equal the same as EF, they are similar. All you would have to do is figure out the pre image (BC) of EF.
Answer:
-5
Step-by-step explanation:
mark brainlest plzzz
First, isolate the variable
X+0=75-5
X+0=70
X=70
Hope I helped!
Good Luck!