What is the missing reason in the proof? Given: ZABC is a right angle, ZDBC is a straight angle
Prove: ZABC < ZABD

C. definition of congruent angles.

Step-by-step explanation:

Initially,m<ABC has already been stated to be 90° based in the definition of a right angle.

Also, m<ABD was then proven to also 90°.

Therefore, the most appropriate reason to give why m<ABC ≅ m<ABD is "definition of congruent angles."

Congruent angles have the same angle measure.

step-by-step explanation:

if x = 2 you have to find x to finish the problem

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct