Calculating Areas of Geometric Shapes

The video tutorial covers the calculation of areas for composite figures, which are shapes made up of multiple simple shapes. The teacher explains the concept using two examples: a rocket ship shape and a basketball court shape. Each example involves breaking down the composite figure into simpler shapes, calculating their areas, and summing them up to find the total area. The teacher also provides encouragement and guidance on how to ask questions and review the material.

What is a composite figure?

• A shape that is made up of several different shapes

• A shape that is only two-dimensional

• A shape that has no area

• A shape made of only one type of geometric figure

How do you find the area of a rectangle?

• Multiply the length by the width

• Subtract the width from the length

• Divide the length by the width

• Add the length and width

In the example, what is the total area of the rectangle?

• 66 feet squared

• 55 feet squared

• 44 feet squared

• 33 feet squared

What is the formula for the area of a triangle?

• One-half base times height

• Base times height

• Base divided by height

• Base plus height

What is the area of the smaller triangle in the example?

• 5 feet squared

• 4 feet squared

• 3 feet squared

• 2 feet squared

What is the total area of the composite figure in the first example?

• 53.5 feet squared

• 52.5 feet squared

• 51.5 feet squared

• 50.5 feet squared

How do you calculate the area of a square?

• Add all the sides together

• Multiply the side length by itself

• Multiply the length by the width

• Divide the side length by two

What is the area of the square in the second example?

• 100 meters squared

• 90 meters squared

• 110 meters squared

• 80 meters squared

What is the formula for the area of a circle?

• Pi times diameter squared

• Pi times radius squared

• Pi times radius

• Pi times diameter

What is the total area of the composite figure in the second example?

• 149.25 meters squared

• 139.25 meters squared

• 129.25 meters squared

• 159.25 meters squared