Finding Areas of Parallelograms, Triangles, and Trapezoids

This video tutorial covers the calculation of area for three types of polygons: parallelograms, triangles, and trapezoids. It begins with a brief introduction to the concept of area and the importance of using squared units. The tutorial then provides formulas and examples for calculating the area of each polygon type, emphasizing the differences in their formulas. The video encourages viewers to review the material to fully understand the concepts.

What units are used to measure the area of a shape?

• Circular units

• Linear units

• Square units

• Cubic units

What is the correct way to express the area of any polygon?

• In cubic units

• In perimeter units

• In square units

• In linear units

What is the formula for the area of a parallelogram?

• Side x Side

• Base x Height

• Base x Width

• Length x Width

What is the area of a parallelogram with a base of 12 cm and height of 5 cm?

• 60 cm squared

• 17 cm squared

• 30 cm squared

• 25 cm squared

How do you calculate the area of a triangle?

• Base x Height / 2

• Base x Height

• Width x Height / 2

• Length x Width / 2

How is the area of a triangle related to a parallelogram?

• It is one-fourth

• It is the same

• It is half

• It is double

If a triangle has a base of 15 inches and height of 4 inches, what is its area?

• 45 square inches

• 30 square inches

• 60 square inches

• 20 square inches

What distinguishes a trapezoid from a parallelogram?

• All sides are equal

• No parallel sides

• Only one pair of parallel sides

• All sides are parallel

What is the area formula for a trapezoid?

• Base1 x Base2 x Height

• (Base1 x Base2) / Height

• (Base1 + Base2) x Height

• (Base1 + Base2) x Height / 2

For a trapezoid with bases 9 cm and 7 cm, and height 3 cm, what is the area?

• 36 cm squared

• 24 cm squared

• 12 cm squared

• 48 cm squared