Understanding Rectangles and Parallelograms

Miss Dri explains how to identify rectangles and parallelograms and calculate their areas using the formula area = base x height. She describes the properties of parallelograms, such as having four sides with opposite sides equal and parallel. The video demonstrates that both rectangles and parallelograms with the same base and height have equal areas. Miss Dri uses visual aids to show congruence between shapes, reinforcing the concept that rearranging parts of a parallelogram can form a rectangle, thus proving the area formula.

What shapes are being discussed in the video?

• Circle and Triangle

• Hexagon and Pentagon

• Square and Rhombus

• Rectangle and Parallelogram

Tags

CCSS.HSG.CO.C.11

Which of the following is NOT a characteristic of a parallelogram?

• Four sides

• Opposite sides are parallel

• All angles are 90 degrees

• Opposite sides are equal

Tags

CCSS.HSG.CO.C.11

How can you identify the base of a parallelogram?

• It is the shortest side

• It is the side parallel to the height

• It is the side perpendicular to the height

• It is the longest side

What is the height of a parallelogram?

• The perpendicular distance from the base to the opposite side

• The side opposite to the base

• The side parallel to the base

• The diagonal of the parallelogram

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the formula for calculating the area of a rectangle or parallelogram?

• Area = length + width

• Area = base + height

• Area = length × width

• Area = base × height

What is the significance of the dotted line sometimes shown on worksheets for parallelograms?

• It represents the diagonal

• It represents the height

• It represents the perimeter

• It represents the base

What must be true about the height of a parallelogram?

• It must be longer than the base

• It must be equal to the base

• It must be parallel to the base

• It must be perpendicular to the base

Tags

CCSS.6.G.A.1

What is the area of both the rectangle and parallelogram in the video?

• 65 square cm

• 55 square cm

• 50 square cm

• 60 square cm

Tags

CCSS.6.G.A.1

Why are the areas of the rectangle and parallelogram equal in the video?

• They have the same angles

• They have the same number of sides

• They have the same base and height

• They have the same perimeter

Tags

CCSS.3.MD.C.5A

What does the video demonstrate by rearranging parts of the shapes?

• The shapes have different areas

• The shapes have different perimeters

• The shapes are not congruent

• The shapes have the same area

Tags

CCSS.3.MD.C.5A