1. triangle ABC has vertices A(2,1), B(7,4) and C(4,-1). DEF has vertices D(-3,1) D(0,-4), and F(-5,-1). use the distance formula to prove that triangle ABC=DEF

2.GIVEN: BAC=DAC, DCA=BCA

PROVE: BC=CD

3.GIVEN: ABE=CBE and AEB=CEB

PROVE: AB=CB

4.GIVEN: BAC=DAC, B=D

Prove:BC=DC

5.GIVEN: DCA=BCA, B=D

PROVE:AB=AD

if u could do any of them thats greatt!!! i just really need help :/