Triangles congruent by ASA and AAS proofs

Everything You Need in One Place

Homework problems? Exam preparation? Trying to grasp a concept or just brushing up the basics? Our extensive help & practice library have got you covered.

Learn and Practice With Ease

Our proven video lessons ease you through problems quickly, and you get tonnes of friendly practice on questions that trip students up on tests and finals.

Instant and Unlimited Help

Our personalized learning platform enables you to instantly find the exact walkthrough to your specific type of question. Activate unlimited help now!

Make math click 🤔 and get better grades! 💯Join for Free

0/1

Intros

Lessons

1. Similar tirangles VS. Congruent triangles
2. Ways to prove congruency:

0/5

Examples

Lessons

What is the third congruence that is needed to prove that $\triangle ABC$ $△ A BC$ $\cong$ $≅$ $\triangle DEF$ $△ D EF$ using the given postulate or theorem?
1. $\overline {AB}$ $\cong$ $\overline {DE}$ and $\angle C$ $\cong$ $\angle F$
  Prove by AAS.
2. $\overline {AC}$ $\cong$ $\overline {DF}$ and $\angle A$ $\cong$ $\angle D$
  Prove by ASA.
3. $\angle A$ $\cong$ $\angle D$ and $\angle B$ $\cong$ $\angle E$
  Prove by AAS.
Decide if the following triangles are congruent. Show your reasoning.
1. $\triangle ABC$ , $\triangle CBD$
2. $\triangle XYZ$ , $\triangle XWZ$

No Javascript

It looks like you have javascript disabled.

You can still navigate around the site and check out our free content, but some functionality, such as sign up, will not work.

If you do have javascript enabled there may have been a loading error; try refreshing your browser.