How do I find for x

Question

asked Dec 12, 2021 116k views

1 Answer

San Diago · Answer 1 · 2021-12-19T03:23:07+0000

The triangle is a right triangle, so the Pythagorean theorem applies.

It says, for this triangle,

14.7^2=11.9^2+x^2

Solve for
; you'll find

x^2=14.7^2-11.9^2

$x=\pm√(14.7^2-11.9^2)$

(but you omit the negative square root, since
must be a positive length)

Use a calculator to find an approximate value:

$x=√(14.7^2-11.9^2)\approx8.64$

(measured in km)