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The diagram shows a right-angled triangle.
11 cm
to
8 cm
Find the size of angle x.
Give your answer correct to 1 decimal place.

The diagram shows a rightangled triangle 11 cm to 8 cm Find the size of angle x Give your answer correct to 1 decimal place class=
Relax

Respuesta :

Answer:

x ≈ 43.3°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos x = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{8}{11}[/tex] , then

x = [tex]cos^{-1}[/tex] ([tex]\frac{8}{11}[/tex] ) ≈ 43.3° ( to 1 dec. place )

sivch
B° = x so refer that syllable to x
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