Plane Shape and Measurement

How do you find the area of a rectangle?

• Length + Length + Length + Length

• Length + Width

• Length x Width

• Width x Width

Find the perimeter of this triangle.

• 20 cm

• 35 cm

• 40 cm

• 12.5 cm

Ashley wants to use ribbon to put a border around her picture. The picture is 6 inches long and 4 inches wide. How much border will she need?

• 24 inches

• 20 inches

• 10 inches

What is a polygon?

• A closed plane figure made up of line segments

• An open plane figure made up of line segments

• A closed plane figure made up of rays

• An open plane figure made up of rays

Find the perimeter of the rectangle. Measurements are given in inches.

• 68 in

• 34 in²

• 285 in²

• 145 in

Convex or Concave?

• convex

• concave

Is the figure a polygon? Is it convex or concave?

• Not a polygon, convex

• Polygon, convex

• Not a polygon

• Polygon, concave

Is the figure a polygon? Is it convex or concave?

• Not a polygon, convex

• Polygon, convex

• Not a polygon

• Polygon, concave

If I wanted to place a fence around my backyard to keep my dog from running away, I would be looking at?

• Perimeter

• Area

Regular or irregular polygon?

• Regular Polygon

• Irregular Polygon