Let's copy the diagram and mark the angles we are asked to compare.
We can see that two sides of â–³ RST are congruent to two sides of â–³ JKL. However, the third side of â–³ RST is longer than the third side of â–³ JKL.
RS&≅JK
ST&≅KL
TR&> LJ
According to the Converse of the Hinge Theorem, the included angle measure in â–³ RST is greater than the included angle measure in â–³ JKL.
m∠RST> m∠JKL
