Which of the following statements about perpendicular lines is true? a. perpendicular lines have a constant distance between them. b. perpendicular lines intersect at a 90 degrees angle. c. there is no standard symbol for perpendicular lines. d. perpendicular lines do not exist in the same plane.

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in