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3 years ago

7

Please answer this fast in two minutes now

1 answer:

Anuta_ua [19.1K]3 years ago

7 0

Answer:

<h2> 18.3</h2>

Step-by-step explanation:

from cosines theorem:

t² = 11² + 14² - 2•11•14•cos87°

t² = 121 + 196 + 308•0.05236

t² = 333.12688

t = √333.12688

t = 18.2517... ≈ 18.3

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