Question

What is the value of x in the triangle? х 30 7V3 60°

Answer 1

Answer:

A. 21

Step-by-step explanation:

Use the trigonometric function for the tangent of an angle because the adjacent side of the right-angled triangle is provided in the question, whilst the opposite side is x.

tan = opposite / adjacent

tan 60° = x / 7 * sqrt(3)

Now make x the subject of the equation.

x = tan 60° * 7 * sqrt(3)

x = 21

When multiplying, take into consideration all the digits on your calculator display.

Hope this helped!