6. Inequalities in Two Triangles
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Use the Converse of the Hinge Theorem.
m∠ FBG
Let's highlight the angles we are asked to compare.
We will focus on triangles △ BFA and △ FBG, and summarize what we know about the sides of these triangles.
| Claim | Justification |
|---|---|
| FA≅BG | Both segments have measure 10. |
| FG< BA | 8<11 |
Since FB is a common side, triangles △ BFA and △ FBG have two pairs of congruent sides. This means that we can apply the Converse of the Hinge Theorem. FG< BA ⇓ m∠ FBG < m∠ BFA