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10-02-2022
Mathematics

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What is the measure of angle UST?
A cannot be determined
B 72 degrees
C 30 degrees
D 150 degrees

What is the measure of angle UST A cannot be determined B 72 degrees C 30 degrees D 150 degrees class=

Respuesta :

semsee45 semsee45

10-02-2022

Answer:

C 30 degrees

Step-by-step explanation:

Sum of interior angles of a triangle = 180°

⇒ ∠UST + 78 + 72 = 180

⇒ ∠UST = 180 - 78 - 72

⇒ ∠UST = 30°

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