Area and Composite Figures Concepts

The video tutorial introduces composite figures, which are made from basic shapes like squares, triangles, and circles. It explains how to calculate the area of these figures by breaking them into simpler shapes, finding each area, and summing them up. The tutorial provides several examples, including combinations of triangles, rectangles, semi-circles, and trapezoids, demonstrating the step-by-step process of area calculation.

What is a composite figure?

• A figure with no defined shape

• A figure made of two or more basic shapes

• A figure made of only one shape

• A figure that cannot be measured

Which of the following is NOT a step in finding the area of a composite figure?

• Calculate the area of each shape

• Break the figure into basic shapes

• Add the areas of all shapes

• Find the perimeter of each shape

What is the formula for the area of a rectangle?

• Pi times radius squared

• Side squared

• Length times width

• Base times height

In Example 1, what is the area of the triangle?

• 48 square meters

• 96 square meters

• 73.12 square meters

• 25.12 square meters

In Example 1, what is the radius of the semicircle?

• 12 meters

• 6 meters

• 4 meters

• 8 meters

In Example 2, what is the area of the rectangle?

• 222 square centimeters

• 180 square centimeters

• 84 square centimeters

• 42 square centimeters

In Example 2, what is the total area of the composite figure?

• 180 square centimeters

• 42 square centimeters

• 84 square centimeters

• 222 square centimeters

In Example 3, what is the height of the triangle?

• 10 meters

• 5 meters

• 6 meters

• 15 meters

In Example 3, what is the area of the rectangle?

• 30 square meters

• 35 square meters

• 15 square meters

• 20 square meters

In Example 4, what is the side length of the square?

• 5 centimeters

• 3 centimeters

• 10 centimeters

• 2 centimeters