Question

PERE
Given: ZABC is a right angle and ZDEF is a right angle.
Prove: All right angles are congruent by showing that ZABC = ZDEF.
What are the missing reasons in the steps of the proof?
ZABC, ZDEF are
right angles
M2ABC = 90°
m2DEF = 90°
m2ABC = m_DEF
ZABC = ZDEF
Given
A
B
A:
B:
C:
Intro

Answer 1

Answers:

• A) Definition of right angles
• B) Substitution
• C) Definition of congruence

=========================================

Explanation:

• A) The term "right angle" is another way of saying "90 degree angle". This is a definition. Think of a definition in a dictionary.
• B) The substitution property allows us to replace one thing for another, as long as the two things are equal. The transitive property works as a similar idea.
• C) If two angles have the same measure, then they are congruent. This is the definition of congruence (or one form of it).

Answer 2

In this exercise we have to use the knowledge of angles, in this way we can say that:

A) Right angles

B) Substitution

C) Congruence

So punctuating some necessary definitions we have that:

A) This alternative is a right angle, that is, an angle that has 90 degrees.

B) The substitution property allows us to replace one thing for another, as long as the two things are equal.

C) IIn this alternative, we are dealing with congruent angles, that is, angles that have the same measure, normally less than 90 degrees.

See more about angles at brainly.com/question/15767203