Final: Enough to Find It?

Part of the Congruence & Proof section of Coddy's Geometry journey. Lesson 61 of 63.

EF is parallel to HJ. Segments EJ and FH cross at G, and the ticks show EG = FG. The angle at F, ∠EFG, is 38°.

Decide whether the figure fixes the angle ∠HGJ at the crossing. If it does, find it by naming each rule you use.

Challenge

EF ∥ HJ, the ticks show EG = FG, and ∠EFG = 38°. Is there enough information to find ∠HGJ? Answer, and if it is enough, find it. Then press Check.

Try it yourself

$Is there enough information?$

Is there enough information?

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Congruence & Proof

2Congruent Triangles

Same Size, Same Shape Matching Sides Matching Angles What Congruence Gives Recap: Matching Parts

5ASA and AAS

The Side Between The ASA Rule The AAS Rule ASA or AAS?Recap: ASA and AAS

8Proofs with Vertical Angles

Vertical Angles in Proofs The Bowtie Bowtie with ASA Linear Pairs in Proofs Recap: Vertical Angles

11Similarity Proofs

3SSS

Three Sides Fix It The SSS Rule A Shared Side SSS with a Shared Side Recap: SSS

6HL for Right Triangles

Hypotenuse and Legs The HL Rule Why HL Works HL with a Shared Leg Recap: HL

9Proofs with Parallel Lines

Parallel Angles as Reasons Alternate Angles in a Proof Corresponding Angles in Proofs Parallel or Not?Recap: Parallel Proofs

12Final Challenges

Final: The Kite Diagonals Final: Overlapping TrianglesFinal: Enough to Find It?Final: The Height Bisects Final: The Roof Frame