Question

the tower of pisa, in italy, began tilting during its construction in the 12th century. it currently leans at an angle of about 4° from the vertical, as shown. what equation for the measure of x, the angle it makes from the horizontal, could you use in a proof? a. 90 + 4 = x b. x + 90 = 4 c. x = 90 d. 4 + x = 90

Explanation:

Step1: Analyze angle - relationship

The vertical and horizontal directions are perpendicular (90 - degree angle). The angle between the tower and the vertical is 4 degrees, and the angle between the tower and the horizontal is \(x\). The sum of the 4 - degree angle and \(x\) should be 90 degrees.

Step2: Write the equation

Based on the above - mentioned relationship, we can write the equation \(4 + x=90\).

Answer:

D. \(4 + x = 90\)