If two parrallelograms have the same base length, but the height of the first is half of the second, then what is the ratio of the area if the first parrallelogram to that of the second?

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