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PSYCHO15rus [73]
3 years ago
6

In ΔSTU, s = 50 inches, t = 58 inches and u=27 inches. Find the measure of ∠S to the nearest 10th of a degree.

Mathematics
2 answers:
Mandarinka [93]3 years ago
4 0

Step-by-step explanation:

By Cosine rule, we have

s² = t² + u² - 2(t)(u)(cosS)

=> cosS = (t² + u² - s²)/2tu

=> cosS = (58² + 27² - 50²) / (2 * 58 * 27) = 0.5086.

Therefore S = cos^-1(0.5086) = 59.4° (1d.p.)

Zinaida [17]3 years ago
4 0

Answer:

59.4

Step-by-step explanation:

delta math

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