Calculating Areas of Shapes: Rectangles, Parallelograms, and Triangles

This video tutorial explains how to find the area of rectangles, parallelograms, and triangles. It begins with an introduction to the concept of area, emphasizing that it is measured in square units. The video then demonstrates how to calculate the area of rectangles by multiplying length and width. It explains how parallelograms can be transformed into rectangles to find their area using base and height. For triangles, the video shows how to use the base and height, dividing by two, to calculate the area. The tutorial concludes with practice problems and a recap of the key concepts.

What is area measured in?

• Circular units

• Cubic units

• Square units

• Linear units

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CCSS.3.MD.C.6

In the context of area, what are square units used to measure?

• Perimeter

• Volume

• Space inside a 2D shape

• Length of sides

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CCSS.3.MD.C.6

How do you find the area of a rectangle?

• Length x Width

• (Length + Width) / 2

• Length / Width

• Length + Width

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What shape can a parallelogram be transformed into to find its area?

• Triangle

• Rectangle

• Circle

• Square

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CCSS.6.G.A.1

How is the area of a parallelogram calculated?

• Base x Height

• (Base x Height) / 2

• Base + Height

• Base / Height

Tags

CCSS.6.G.A.1

What does it mean if two sides are perpendicular in the context of area calculation?

• They form a 45-degree angle

• They do not intersect

• They run parallel to each other

• They form a 90-degree angle

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CCSS.HSG.CO.C.11

How do you find the area of a shape with three given dimensions?

• Use all three dimensions

• Ignore the dimension not at a right angle

• Average all dimensions

• Multiply all three dimensions

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CCSS.5.MD.C.5B

CCSS.6.G.A.2

What is the formula for the area of a triangle?

• (Base + Height) / 2

• Base x Height

• Base x Height / 2

• (Base x Height) ^ 2

Tags

CCSS.6.G.A.1

Which measurements are needed to calculate the area of a triangle?

• Height and side length

• Base and side length

• Base and height

• Perimeter and base

Tags

CCSS.6.G.A.1

What is the first step in determining the area of a shape?

• Count the square units

• Divide the given dimensions

• Multiply the given dimensions

• Write down the formula

Tags

CCSS.3.MD.C.5A