Calculating the Area of a Triangle

The video tutorial explains how to calculate the area of a triangle using the formula: area equals one-half times the base times the height. It provides an example calculation, clarifying that the base can be any side, as long as the height is measured at right angles to it. The tutorial also explains why the area is half of the base times height by visualizing a doubled triangle forming a rectangle. Finally, viewers are encouraged to apply their knowledge through practice questions.

What is the formula for the area of a triangle?

• Area = (base * height) / 2

• Area = base * height

• Area = base + height

• Area = (base + height) / 2

What does 'B' represent in the triangle area formula?

• Height

• Perimeter

• Base

• Angle

What should you ensure about the height when calculating the area of a triangle?

• It is measured at right angles to the base

• It is measured along the base

• It is the longest side of the triangle

• It is equal to the base

If the base of a triangle is 20 units and the height is 12 units, what is the area?

• 240 square units

• 120 square units

• 60 square units

• 30 square units

What is the height in a triangle if the area is 120 square units and the base is 20 units?

• 10 units

• 24 units

• 6 units

• 12 units

How can the area of a triangle be described geometrically?

• As half of a square

• As half of a circle

• As half of a rectangle

• As half of a parallelogram

Why is the triangle area formula A = 1/2 * base * height?

• Because it is derived from the circle's area formula

• Because it represents half of the base multiplied by height

• Because it represents half of a rectangle formed by doubling the triangle

• Because it represents half of a parallelogram