Students were asked over to answer a question at education and to mention what is most important for them to succeed. One that response stood out from the rest was practice. Successful persons are not always born successful; they become successful thru hard work and commitment. This is how you can obtain your goals. right below are one of the answer and question example that you would certainly make use of to practice and upgrade your information and also give you insights that can assist you to keep up your study in school.

## Question:

What is the missing reason in step 3?

## Answer:

**The missing reason in step 3 is that;**

**Vertical angles are congruent.**

This is about **angle theorems** as used in each of the steps in the question.

Now, in step 2, we see that;

∠EDF and ∠ADC are **vertical angles**. This means that both angles which are opposite to each other are made by 2 intersecting lines which are A F and EC.

Now, in step 3, we see that;

∠EDF ≅ ∠ADC

The symbol ≅ means congruent.

Moreover, according to **vertical angles theorem**, it states that vertical angles are always **congruent**.

Thus, the missing reason in step 3 is that;

Vertical angles are congruent.

From the answer and question examples above, hopefully, they can guide the student resolve the question they had been looking for and notice of all sorts of things declared in the answer above. You could definitely then have a discussion with your classmate and continue the school learning by studying the topic altogether.