Question

Please help me :( this is really hard

Answer 1

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 )

Answer 2

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°)

Putting values:

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

$\boxed {Perpendicular = 13.72605cm}$