Finding Perimeter and Pythagorean Theorem

This video tutorial teaches how to find the perimeter of two-dimensional figures on the coordinate plane. It reviews the Pythagorean Theorem for calculating missing sides of right triangles and highlights common mistakes in perimeter calculations. The tutorial provides step-by-step instructions for finding the perimeter of trapezoids and parallelograms using coordinates, emphasizing the importance of adding all sides together. The lesson concludes with a summary of the key concepts covered.

What is the Pythagorean Theorem used for?

• Calculating the perimeter of a square

• Measuring the volume of a cube

• Finding the area of a circle

• Determining a missing side of a right triangle

What is a common mistake when calculating the perimeter of a polygon?

• Subtracting the sides

• Multiplying the sides

• Dividing the sides

• Ignoring the sides

How do you find the perimeter of a trapezoid?

• Divide the sum of the sides by two

• Subtract the shorter sides from the longer sides

• Add all sides together

• Multiply all sides

What is the length of the diagonal in the trapezoid example?

• 8.0 units

• 7.2 units

• 6.5 units

• 9.1 units

What is the perimeter of the trapezoid in the example?

• 24.6 cm

• 23.2 cm

• 21.8 cm

• 20.5 cm

How do you find the height of a parallelogram using the Pythagorean Theorem?

• By adding the base and height

• By using the legs of a right triangle

• By dividing the base by the height

• By subtracting the base from the height

What is the height of the parallelogram in the example?

• 7.5 units

• 8.1 units

• 10.2 units

• 9.0 units

What is the perimeter of the parallelogram in the example?

• 30.2 cm

• 29.5 cm

• 31.6 cm

• 28.4 cm

What is the main takeaway from this lesson on finding the perimeter?

• Add all the sides together

• Subtract the longest side

• Always multiply the sides

• Divide the perimeter by the number of sides

What is the final step in finding the perimeter of any polygon?

• Multiply the sides by two

• Add all the sides together

• Subtract the smallest side

• Divide the total by the number of sides