The video tutorial explains how to calculate the area of a triangle, using the Flatiron Building as an example. It reviews the area calculation of rectangles and demonstrates how this knowledge applies to triangles. The tutorial derives the triangle area formula and provides examples of its application. It also offers guidance on identifying the base and height in different triangle orientations and includes practice problems to reinforce learning.

What building is used as an example to explain the shape of a triangle?

• One World Trade Center

• Empire State Building

• Chrysler Building

• Flat Iron Building

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CCSS.2.G.A.1

How do you calculate the area of a rectangle?

• Base times Height

• Length divided by Width

• Length times Width

• Length plus Width

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the area of a triangle derived from a rectangle with base 4 units and height 2 units?

• 2 square units

• 8 square units

• 4 square units

• 16 square units

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CCSS.6.G.A.1

In the triangle area formula, what does the '1/2' represent?

• Half the perimeter

• Half the base

• Half the height

• Half the area of the rectangle

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CCSS.6.G.A.1

What are the dimensions used to calculate the area of a triangle with a base of 8 in and height of 8 in?

• 8 * 8

• 4 * 8

• 8 * 4

• 2 * 8

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CCSS.6.G.A.1

How much is half of 225?

• 110.5

• 120.5

• 115.5

• 112.5

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CCSS.6.NS.B.3

What is the area of a triangle with base 6 units and height 3 units?

• 9 square units

• 18 square units

• 12 square units

• 6 square units

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CCSS.6.G.A.1

In triangle problems, what should you do with the dimension that is not needed?

• Multiply it by the base

• Add it to the height

• Ignore it

• Subtract it from the base

Tags

CCSS.6.G.A.1

What is the correct area calculation for a triangle with base 7 units and height 5 units?

• 35 square units

• 17.5 square units

• 12.5 square units

• 22.5 square units

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CCSS.6.G.A.1

How do you determine the base and height in a triangle area problem?

• Look for the longest side

• Identify the right angle

• Choose any two sides

• Use the two shortest sides

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CCSS.6.G.A.1