Calculating Area of Shapes

The video tutorial introduces the concept of area, explaining how it is the amount of space covered by a two-dimensional figure. It covers methods to calculate area, including counting squares and applying formulas for rectangles and squares. Practical applications, such as determining wallpaper needed for a wall, are discussed. Advanced topics include calculating the area of composite figures by breaking them into rectangles. The lesson concludes with a summary of key points.

What is the primary focus of this lesson on area?

• Studying the properties of circles

• Calculating the volume of 3D shapes

• Understanding the concept of area

• Learning about perimeter

Which method is used to calculate the area of a triangle on squared paper?

• Counting the squares method

• Measuring with a ruler

• Using a protractor

• Using a compass

How do you calculate the area of a rectangle?

• Divide the length by the breadth

• Subtract the breadth from the length

• Multiply the length by the breadth

• Add the length and breadth

What is the area of a square with a side length of 5 meters?

• 15 square meters

• 10 square meters

• 20 square meters

• 25 square meters

What is the area of a rectangle with a length of 15 cm and a breadth of 8 cm?

• 130 square centimeters

• 100 square centimeters

• 110 square centimeters

• 120 square centimeters

If a wall is 4 meters high and 3 meters wide, how much wallpaper is needed to cover it?

• 20 square meters

• 7 square meters

• 12 square meters

• 15 square meters

What is the area of a path surrounding a square garden if the outer garden is 324 square meters and the inner garden is 225 square meters?

• 99 square meters

• 100 square meters

• 101 square meters

• 102 square meters

How can you find the area of a composite figure?

• By using a protractor

• By measuring the perimeter

• By dividing it into individual rectangles and summing their areas

• By estimating visually

What is the area of a composite figure made up of three rectangles with areas 18, 20, and 20 square centimeters?

• 56 square centimeters

• 58 square centimeters

• 60 square centimeters

• 62 square centimeters

Which of the following is NOT a method to calculate area?

• Multiplying dimensions

• Breaking into simpler shapes

• Using a compass

• Counting squares