Find the area of a parallelogram using special right triangles

The video tutorial covers the properties of parallelograms and 30-60-90 triangles. It explains how to rotate shapes for better understanding, calculate dimensions in 30-60-90 triangles, and find the area of shapes using rationalization. The lesson emphasizes the importance of understanding geometric properties and using calculators for approximation.

What is the key property of opposite sides in a parallelogram?

• They are perpendicular.

• They are equal in length.

• They are parallel.

• They form a right angle.

In a 30-60-90 triangle, how is the hypotenuse related to the short leg?

• It is the same length as the short leg.

• It is twice the length of the short leg.

• It is three times the length of the short leg.

• It is half the length of the short leg.

If the long leg of a 30-60-90 triangle is 5, what is the length of the short leg?

• 5 * 2

• 5 / 2

• 5 / sqrt 3

• 5 * sqrt 3

How do you find the area of a shape using its base and height?

• Subtract the height from the base.

• Divide the base by the height.

• Multiply the base by the height.

• Add the base and height.

What is the purpose of rationalizing the denominator in a fraction?

• To convert the fraction to a decimal.

• To make the fraction larger.

• To eliminate the radical from the denominator.

• To simplify the numerator.