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laila [671]
3 years ago
15

Find the missing side round your answer to the nearest tenth

Mathematics
1 answer:
kap26 [50]3 years ago
7 0
Use trigonometric ratios.
Use angle(19)
Adjacent side of angle measure 19 is X
The hypotenuse is 21.
Use the cosine
Cos(19)=x/21

Plug in calculator
(21)cos(19)=19.85

Round to the nearest tenth. Which means the 8 rounds up to 9.

Answer: 19.9
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