Help me plz

Select the lengths in centimeters that would form a right triangle

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

Plz ( true - false) all triangles have interior angles whose measure sum to 90.