Question

CAN SOMEONE HELP ME PLSS

Answer 1

The answer is 54.7
54.7
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Answer 2

∠ T ≈ 54.7°

Explanation:

Using the cosine ratio in the right triangle

cos T =
`(adjacent)/(hypotenuse)` =
`(ST)/(TU)` =
`(√(21) )/(3√(7) )` =
`(√(3) )/(3)` , then

∠ T =
`cos^(-1)` (
`(√(3) )/(3)` ) ≈ 54.7° ( to 1 dec. place )