An isosceles trapezoid has a perimeter of 29 centimeters. its shorter base measures 7 centimeters and its longer base measures 12 centimeters. the two remaining sides have the same length; what is that length?

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