Answer: a+-5 x 4 (I THINK)
Step-by-step explanation:
Hi so remember the perimeter of a square is 4 times the side. so if the perimeter is 36 then you can divide 36 by 4 to get the answer 9.
36=4^x
36=4x
36/4=x
9=x
to cross check if ever unsure times the (side) by 4 if it matches the given perimeter.
°Alternate interior angles are equal
°Corresponding angles are equal
°Vertically opposite angles are equal
°Angles on the same side of tranversal are supplementary
Choice A is correct
BC=DC
the two triangles share one angel C
the two triangles each have a right angle
so they are congruent according to Angle-Side_Side Theorem
I believe the answer is height