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Vinil7 [7]
2 years ago
7

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Mathematics
2 answers:
Katen [24]2 years ago
7 0

Answer:

\sf a=\boxed{13}\:cm

Step-by-step explanation:

<u>Trigonometric ratios</u>

\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}

where:

  • \theta is the angle
  • O is the side opposite the angle
  • A is the side adjacent the angle
  • H is the hypotenuse

Given:

  • \theta = 31°
  • O = a
  • H = 25 m

\implies \sf \sin(31^{\circ})=\dfrac{a}{25}

\implies \sf a=25\sin(31^{\circ})

\implies \sf a=12.87595187...\:cm

Therefore, a = 13 cm (to the nearest whole number)

Mariulka [41]2 years ago
6 0

Answer:

a=13m

Step-by-step explanation:

that's it in the picture

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