Given: ZABC is a right angle and ZDEF is a right angle. Prove: All right angles are congruent by showing that ZABC ELDEF.
What are the missing reasons in the steps of the proof?

∆abc is reflected across the x-axis and translated 2 units up to give the image ∆a'b'c' with coordinates a'(1, 1), b'(2, -1), c'(2, 1). what are the coordinates of the preimage ∆abc? a. a(-1, 1), b(-2, 3), c(-2, 1) b. a(1, 1), b(2, 3), c(2, 1) c. a(1, -3), b(2, -1), c(2, -3) d. a(1, -3), b(2, -5), c(2, -3)

What is best way to getting answer for my exam is

Which expression gives you the distance between the points (5,1)and(9,-6)