Area of Triangles

Area of Triangles

Assessment

Interactive Video

Mathematics

4th - 6th Grade

Medium

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Quizizz Content

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The video tutorial explains how to determine the height and base of a triangle, emphasizing that the height must meet the base at a 90-degree angle. It uses a triangle with sides of 9, 6, and 10 inches, identifying the 10-inch side as the base and a 5-inch line as the height. The tutorial then demonstrates calculating the triangle's area using the formula (base * height) / 2, resulting in an area of 25 square inches. The lesson concludes by reinforcing the importance of using square units for area measurements.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the requirement for a line to be considered the height of a geometrical figure?

It must be the longest side of the figure.

It must be equal in length to the base.

It must meet the base at a 90-degree angle.

It must be parallel to the base.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the given triangle, which side is identified as the base?

The side measuring 9 inches.

The side measuring 6 inches.

The side measuring 10 inches.

The side measuring 5 inches.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What formula is used to calculate the area of a triangle?

Base minus height divided by 2

Base times height divided by 2

Base plus height divided by 2

Base times height divided by 3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the base of a triangle is 10 inches and the height is 5 inches, what is the area?

30 square inches

35 square inches

25 square inches

20 square inches

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to include square units when labeling the area of a triangle?

To show the measurement is in three dimensions.

To indicate the measurement is in two dimensions.

To ensure the units match the base and height.

To differentiate from perimeter measurements.

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