Final answer:
The correct option to find the length x to the nearest whole number is b) Trigonometric ratios. Trigonometric ratios, such as sine, cosine, and tangent, can be used to find missing lengths in a right triangle.
Step-by-step explanation:
The correct option to find the length x to the nearest whole number is b) Trigonometric ratios. Trigonometric ratios, such as sine, cosine, and tangent, can be used to find missing lengths in a right triangle. To find length x, we need to know the measurement of one of the acute angles in the triangle and the lengths of the other two sides. With this information, we can use a trigonometric ratio to find the length of x.
A common trigonometric ratio used to find lengths in a right triangle is the sine ratio. The sine of an acute angle is equal to the length of the side opposite the angle divided by the length of the hypotenuse. By rearranging this equation, we can solve for the length of x.