Calculating Areas of Rectangles, Triangles, and Parallelograms

The video tutorial explains how to calculate the area of rectangles, parallelograms, and triangles. It begins with an introduction to the concept of area, using rectangles as an example. The formula for calculating the area of a rectangle is given as length times width. The tutorial then moves on to parallelograms, explaining that the area is calculated using base times height, similar to rectangles. Finally, the video covers triangles, highlighting that the area is half of the base times height, as a triangle is essentially half of a rectangle or parallelogram.

What does the area of a shape tell us?

• The perimeter of the shape

• The volume the shape occupies

• The amount of space the shape covers

• The color of the shape

What is the formula for the area of a rectangle?

• Area = length x width

• Area = (length + width) / 2

• Area = length / width

• Area = length + width

If a rectangle has a length of 15 inches and a width of 7 inches, what is its area?

• 50 square inches

• 105 square inches

• 210 square inches

• 22 square inches

How do you calculate the area of a parallelogram?

• Base times height

• Base plus height

• Base minus height

• Base divided by height

What is the correct height to use for calculating the area of a parallelogram if given two options?

• The longer of the two measurements

• Any of the given heights

• The shorter of the two measurements

• The perpendicular height from the base

What is the area of a parallelogram with a base of 14 ft and a height of 8.2 ft?

• 114.8 square feet

• 113.5 square feet

• 115.2 square feet

• 114.1 square feet

What distinguishes the area formula of a triangle from that of a rectangle?

• It is divided by 2

• It includes the height

• It is multiplied by 1/2

• It includes the base

For a triangle with a base of 24 cm and a height of 14.5 cm, what is the area?

• 170 cm squared

• 348 cm squared

• 180 cm squared

• 174 cm squared

Why is the area of a triangle considered half of a rectangle?

• Because it has half the height of a rectangle

• Because it is always smaller than a rectangle

• Because it has two sides

• Because it can be derived from dividing a rectangle into two

What unit is used to measure area?

• Square units

• Cubic units

• Quadratic units

• Linear units