Question

Need some help with this one

Answer 1

Answer:

17.5 ft

Step-by-step explanation:

Given

$Ladder = 18ft$

$\theta = 76$

Required

The height which the ladder reaches on the wall

The question is illustrated with the attached image (solve for x).

Using sine formula, we have:

$\sin(76) = \frac{x}{18}$ --- i.e. sin = opposite/hypotenuse

Make x the subject

$x = 18 * \sin(76)$

$x = 18 * 0.9703$

$x = 17.4654$

Approximate

$x = 17.5$