# Right Triangles and Trigonometry

### Example 1

Find the values of *x* and *y*.

### Example 2

Find the values of *x* and *y*.

### Example 3

Find the values of *x* and *y*.

### Example 4

Find the perimeter of the figure.

### Example 5

Find the value of *x*.

### Example 6

Find the perimeter of the largest triangle.

### Example 7

Find the values of *x* and *y*.

### Example 8

∆*ABC* is a Gandalf (45-45-90) triangle with the 90° angle at *A*. Find the coordinates of *A* in quadrant I if given the following coordinates: *B* (-5, 1) and *C* (4, 10).