Blank 1= must be congruent
Blank2= must not be perpendicular
Also search up a quadrilateral rhombus see what it looks like then search up the definition of congruent and perpendicular and you’d be able to see for yourself
1: m<ABD = m<CBE | given
2: m<CBD = m<CBD | reflexive
3: m<1 = m<3 | subtraction
Here’s the Answer for this equation
Answer: Don't know sorry
Step-by-step explanation: