Question

Find the value of x. Round the length to the nearest tenth.

Answer 1

A. 6.9 cm
B. 9.8 cm
C. 8.4 cm
D. 17.1 cm

Answer 2

Someone please help

Answer 3

do you know the basic trig functions

sin, cos and tan?

Answer 4

ehh i havent done it in a while @MrNood

Answer 5

well - there is a simple relationship between the sides of a right angle triangle.

The side opposite the right angle is called the hypotenuse
Choose either of the other 2 angles (lets call it x)
the side opposite THAT angle is called 'Opposite'
the side adjacent to that angle is called 'Adjacent



The ratio between the lenght of any two sides is a fixed value for a given angle, and is given a name

so in the drawing the following ratios are:
Opposite/Hypotenuse = sine x (usually written sin(x) )
Adjacent/Hypotenuse = cosine x (usually written cos(x) )
Opposite/Adjacent = Tangent x (usually written tan(x) )

In your question the 2 sides of interest are opposite and adjacent and you can see from above
opposite/adjacent = x/12= tan(35deg)
so use a calculator to find tan 35 and then solve the above equation for x


NOTE - just for confusion - I used x for the angle in my explanation - whereas x is the side in your question.