KS2 Primary Maths Age 9-13 - Area and Perimeter: - Explained

The video tutorial explains how to find the perimeter of a square given its area. It starts by identifying the area of the square as 25 cm² and then calculates the side length by determining what number multiplied by itself equals 25, which is 5. With the side length known, the perimeter is calculated by multiplying the side length by 4, resulting in 20 cm. The tutorial also mentions the allocation of marks for finding the side length and the final answer.

What is the area of the square mentioned in the video?

• 20 square centimeters

• 35 square centimeters

• 30 square centimeters

• 25 square centimeters

How do you determine the side length of a square if you know its area?

• Multiply the area by 2

• Divide the area by 4

• Find the square root of the area

• Add 5 to the area

What is the side length of the square with an area of 25 square centimeters?

• 7 centimeters

• 6 centimeters

• 5 centimeters

• 4 centimeters

How is the perimeter of a square calculated?

• Add all the side lengths

• Multiply one side length by 4

• Multiply the area by 4

• Divide the area by 2

What is the perimeter of the square discussed in the video?

• 18 centimeters

• 15 centimeters

• 22 centimeters

• 20 centimeters