9-1 Area of a Trapezoid - GEOMETRY

The video tutorial explains how to find the area of a trapezoid using its formula. It covers the properties of trapezoids, emphasizing the importance of parallel lines. An example problem is presented where the area is given, and the task is to find a missing base. The instructor guides through solving the problem step-by-step, demonstrating how to manipulate the formula to isolate the unknown variable. The tutorial concludes with a verification of the solution.

What is the basic formula for finding the area of a trapezoid?

• Base one plus base two times height divided by two

• Base one times base two divided by height

• Base one plus base two divided by height

• Base one times base two times height

Why is it important for a trapezoid to have parallel lines?

• To calculate the perimeter

• To make it a rectangle

• To apply the area formula correctly

• To ensure it is a quadrilateral

Which of the following is a variation of the trapezoid area formula?

• Base one plus base two minus height

• 1/2 times base one plus base two times height

• Base one times base two plus height

• Base one times base two divided by two

In the given problem, what is the area of the trapezoid?

• 6 feet squared

• 8 feet squared

• 10 feet squared

• 12 feet squared

What is the height of the trapezoid in the problem?

• 5 feet

• 2 feet

• 4 feet

• 3 feet

How do you solve for an unknown base in the trapezoid problem?

• Use the area formula and solve for the unknown

• Subtract the height from the area

• Add the known base to the height

• Multiply the known base by the height

What is the value of the unknown base in the problem?

• 7 feet

• 5 feet

• 4 feet

• 6 feet