Make-that-Move Transformations: rotation, translation, and reflection. The apostrophe (')
means PRIME. For example A' is read A prime, B' is read B prime.
What transformation is 1A, 1B, 2A and 2B? You will get extra credit if
you tell me how you moved the original figure ABC to the new image A'B'C'.
I gave you an example for 1A and partly for 2A.
1A. Translation - A to A': 6 units to the right, B to B': 6 units the the
right, C to C': 6 units to the right)
1B.
2 down B to B': 7 units

Given: ad¯¯¯¯¯ is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason ad¯¯¯¯¯ is an altitude, and ∠bac is a right angle. given ∠adb and ∠adc are right angles. definition of altitude ∠bac≅∠bda ? ∠bac≅∠adc ? ∠b≅∠b ? ∠c≅∠c reflexive property of congruence △abc∼△dba ? △abc∼△dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality