63 less than four times a number is equal to the number. what is the number?

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Are the corresponding angles congruent? explain why or why not.