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r-ruslan [8.4K]
3 years ago
15

Please help me :( this is really hard

Mathematics
2 answers:
avanturin [10]3 years ago
8 0

Answer:

h ≈ 7.9 cm

Step-by-step explanation:

Using the sine ratio in the right triangle

sin26° = \frac{opposite}{hypotenuse} = \frac{h}{18} ( multiply both sides by 18 )

18 × sin26° = h , then

h ≈ 7.9 cm ( to 1 dec. place )

mafiozo [28]3 years ago
4 0

We will find this using trigonometric ratios

We will apply the law of sines

  • \tt \: perpendicular = hypotenuse \times  \sin( \alpha )

We are using this law as we have to find perpendicular or height of the triangle.

  • Hypotenuse= 18cm
  • sin(α)=sin(26°)

<h3>Putting values:</h3>

\sf Perpendicular = 18 \times  \sin(26)

\boxed {Perpendicular = 13.72605cm}

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