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3 years ago

11

100 POINTS AND BRAINLY

2 answers:

Neporo4naja [7]3 years ago

7 0

$\\ \rm\hookrightarrow cos61=\dfrac{10}{x}$

$\\ \rm\hookrightarrow x=10/cos61$

$\\ \rm\hookrightarrow x=10/0.5$

$\\ \rm\hookrightarrow x=20$

alexandr402 [8]3 years ago

3 0

Answer:

x = 20.6°

using cosine rule:

$\sf cos(x)= \dfrac{adjacent}{hypotensue}$

<u>using the formula:</u>

$\sf cos(61)= \dfrac{10}{x}$

$\sf x= \dfrac{10}{cos(61)}$

$\sf x= 20.6$

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