Calculating Perimeter of Polygons

The video tutorial explains how to calculate the perimeter of a polygon with missing sides. The teacher guides students through identifying given and missing sides, assuming right angles, and using known measurements to find the total perimeter. The process involves summing the known sides and deducing the lengths of missing sides based on the total length of opposite sides. The final perimeter is calculated to be 80 feet. The teacher concludes with encouragement for students to study hard for their upcoming test.

What is the main challenge in finding the perimeter of the given polygon?

• The polygon has no sides.

• All sides are given.

• The angles are not right angles.

• Some sides are missing.

How many sides of the polygon are initially given?

• One side

• Two sides

• Four sides

• Three sides

What assumption is made about the angles of the polygon?

• All angles are 90 degrees.

• All angles are 120 degrees.

• All angles are 60 degrees.

• All angles are 45 degrees.

What are the given side lengths of the polygon?

• 25 feet, 10 feet, 5 feet

• 20 feet, 12 feet, 8 feet

• 30 feet, 20 feet, 10 feet

• 10 feet, 15 feet, 5 feet

What are the names given to the missing sides in the explanation?

• m, n, o

• a, b, c, d, e

• p, q, r

• x, y, z

What is the sum of sides a and b?

• 10 feet

• 15 feet

• 20 feet

• 25 feet

What is the total length from bottom to top of the polygon?

• 25 feet

• 20 feet

• 15 feet

• 10 feet

What is the relationship between sides a, b, and the given sides?

• a + b = 20

• a + b = 15

• a + b = 25

• a + b = 10

What is the sum of sides c, d, and e?

• 15 feet

• 25 feet

• 10 feet

• 20 feet

What is the total perimeter of the polygon?

• 60 feet

• 90 feet

• 70 feet

• 80 feet