Pembahasan Latihan Soal Matematika 4

Question:
Consider the following figure!

The height of tower from above figure is ....


Answer:
First, determine the distance between the sea level with the base tower. Use phytagorean theorem!

Because of the angle, 45 degrees, 45 degrees, and 90 degrees, then the triangle is right-angled isosceles. If the base and height of the triangle we let x, then:




                                               
Next, determine the distance between the sea level with the top tower
According the ratio comparison of special angles in a triangle, known comparison side front corner of 30 degrees, 60 degrees, and 90 degrees are, so:






The height of tower is the difference of distance between the sea level with the base tower and the distance between the sea level with the top tower, so that:
height of tower is  km.