Question

Calculate the length of the side x, given that tan θ = 0.4 will post bellow

Answer 1

@iGreen

Answer 2

I don't know the formula for tangent

Answer 3

SOH CAH TOA

Tangent = Opposite/Adjacent

Answer 4

So in this case it will be:

\(\sf tan(0.4) = \dfrac{x}{15}\)

Answer 5

6cm?

Answer 6

Yep, that's if you round..

First we find tan(0.4), which is 0.422793219:

\(\sf 0.422793219 = \dfrac{x}{15}\)

Now we multiply 15 to both sides:

\(\sf x = 0.422793219 \times 15\)

\(x = 6.34189829 \approx 6\)

Answer 7

thank you very much. again :)