4.1.3 Congruent Triangles - Worksheet (continued)
Example 4: 10. The McDonald Observatory has four research telescopes and is a leading center for astronomical study. Prove that the triangles that make up the observatory dome are congruent. Given: SU ≅ ST ≅ SR , TU ≅ TR , ∠ UST ≅ ∠ RST , and ∠ U ≅ ∠ R Prove: △ RTS ≅ △ UTS
U
S
U S
T R
T
R
U
S
U S
T R
T
R
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