Question

Trigonometry anyone?

Answer 1

Explanation:

When you are looking for missing sides in a right triangle, you only need Pythagorean's Theorem. In #1, we are looking for the hypotenuse length but we have the other 2 sides. Plugging in:

`x^2=10.6^2+4.4^2` and

`x^2=112.36+19.36` and

`x^2=131.72` so

x = 11.5 km

For #2, we have the length of the hypotenuse and 1 side and need the other side:

`12.8^2=12^2+b^2` and

`163.84=144+b^2` and

`19.84=b^2` so

b = 4.5