Calculating Perimeters of Shapes

This video tutorial, led by Sir Noi, is the final part of a series on perimeter. It covers how to calculate the perimeter of various shapes such as triangles, squares, rectangles, parallelograms, and trapezoids. The video uses practical examples, like Maria walking around a park, to illustrate the concept of perimeter. It provides formulas for each shape and includes activities for practice. The tutorial concludes with a review of key concepts and encourages viewers to engage with the content through exercises.

What is the main topic of this video series?

• Perimeter of various shapes

• Area of geometric figures

• Angles in polygons

• Volume of solids

How many sides does the park have in the example?

• Six

• Five

• Four

• Three

What is the perimeter of the park that Maria walks around?

• 150 meters

• 195 meters

• 205 meters

• 175 meters

Which of the following is NOT a figure mentioned in the video?

• Parallelogram

• Trapezoid

• Circle

• Rectangle

What is the formula for the perimeter of a square?

• P = a + b + c

• P = 2 × (L + W)

• P = a + b + c + d

• P = 4 × s

How do you calculate the perimeter of a rectangle?

• P = a + b + c + d

• P = a + b + c

• P = 2 × (L + W)

• P = 4 × s

What is the perimeter of a triangle with sides 5, 10, and 8 inches?

• 20 inches

• 23 inches

• 28 inches

• 25 inches

If a square has sides of 15 cm, what is its perimeter?

• 60 cm

• 55 cm

• 50 cm

• 45 cm

What is the perimeter of a trapezoid with sides 8, 7, 10, and 7 cm?

• 30 cm

• 32 cm

• 34 cm

• 36 cm

What is the perimeter of a square with each side measuring 10 cm?

• 45 cm

• 40 cm

• 35 cm

• 30 cm