Question

On a sketch of a mural,3 inches represents one foot in the mural. A door in the sketch is 2 inches wide by 5 inches high. What is the perimeter of the door in the mural expressed in inches?

Answer 1

Answer:

Length of the door,                   l = 5 inches (in)

Width or Breadth of the door, w = 2 inches (in)

Perimeter                                   p = 2(l + w)

                                                   = 2( 5 + 2) inches

                                                   = 2(5) inches + 2(4) inches

                                                   = 10 inches  + 4 inches

                                                   = 14 inches or 14 in

  Step-by-step explanation:

The perimeter of a plane shape is the measurement of the length of its outside boundary, which means the distance around its edges.

The door in the sketch is the shape of a rectangle. the distance around the edge of the door is the sum of all the sides. The longer side of a rectangle is called the length and it is usually represented by letter l while the shorter side is known as width or breadth represented by letter w and b respectively. The perimeter is calculated by the formula 2(l + w). where l means the length and w represents the width.