What is the definition of perimeter in relation to a closed plane figure?

Perimeter is the total distance around the boundary of a closed plane figure, calculated by adding the lengths of all its sides.

The formula for calculating the perimeter of a rectangle is ___ and ___.

Perimeter = 2 × (length + width).

True or False: The perimeter of a polygon can only be calculated if the lengths of all sides are known.

True.

If a rectangular garden has a length of 12 cm and a width of 8 cm, what is the perimeter?

The perimeter is 40 cm, calculated by 2 × (12 cm + 8 cm) = 2 × 20 cm = 40 cm.

Fill in the blank: To determine the perimeter of any polygon, you must ___ the lengths of all its sides.

Add

I am a shape that has four sides of equal length, and my perimeter is calculated as four times the length of one side. What am I?

A square.

What practical applications can perimeter and area calculations have in everyday life?

They can be used for tasks such as determining the amount of fencing needed for a garden or the amount of paint required to cover a wall.

The perimeter of a square is calculated by the formula ___ where s is the length of a side.

Perimeter = 4 × s

True or False: The perimeter of a triangle is found by multiplying the lengths of its sides.

False. The perimeter of a triangle is the sum of the lengths of its three sides.

What is the perimeter of a triangle with sides measuring 4 cm, 5 cm, and 7 cm?

The perimeter is 4 cm + 5 cm + 7 cm = 16 cm.

Fill in the blank: Debojeet needs ___ meters of tape to go around his square photo frame with each side measuring 1 meter.

4

Riddle: I am a shape with four equal sides, and my perimeter is four times my side length. What am I?

A square.

What are the two types of lines used to measure the perimeter of shapes created with letters?

Straight lines and diagonal lines.

Calculate the perimeter of a square if each side measures 2 meters.

Perimeter = 4 × 2 m = 8 m.

What is the formula to calculate the perimeter of a rectangle?

Perimeter = 2 × (Length + Width)

True or False: The perimeter of the small path, which is 30 meters long and 20 meters wide, is 100 meters.

True

Riddle: I am the distance around a shape, measured in units, and I help you understand how far you must travel to go all the way around. What am I?

Perimeter

Fill in the blank: To calculate the perimeter of a rectangle, you need to know the ___ and ___.

Length and Width

Multiple Choice: What is the perimeter of the big path that is 50 meters long and 30 meters wide? A) 160 m B) 100 m C) 80 m D) 200 m

A) 160 m

What is the perimeter of a square with a side length of 40 meters?

The perimeter of a square is calculated as 4 × side length. Therefore, for a square with a side length of 40 meters, the perimeter is 4 × 40 m = 160 meters.