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1. What is the equation for calculating the area of a triangle?

A. [tex]A = \frac{1}{2} \text{ base} \cdot \text{ height}[/tex]
B. [tex]A = \text{length} \cdot \text{width}[/tex]
C. [tex]A = \pi \cdot \text{height}[/tex]
D. [tex]A = \frac{1}{4} \text{ base} \cdot \text{ height}[/tex]


Sagot :

To calculate the area of a triangle, you can use the formula:

[tex]\[ A = \frac{1}{2} \text{ base} \cdot \text{ height} \][/tex]

Here's a step-by-step breakdown of the formula:

1. Identify the base and height:
- The base ([tex]\( \text{base} \)[/tex]) is one side of the triangle, usually the bottom side when the triangle is drawn in a standard position.
- The height ([tex]\( \text{height} \)[/tex]) is the perpendicular distance from the base to the opposite vertex (the top point).

2. Apply the area formula for a triangle:
- The area ([tex]\( A \)[/tex]) of a triangle is obtained by multiplying one half (or 0.5) by the length of the base and the height.

3. Write the formula:
[tex]\[ A = \frac{1}{2} \text{ base} \cdot \text{ height} \][/tex]

This equation signifies that you take half the product of the base length and the height to get the area.

Comparing this step-by-step breakdown with the given options, the correct option is:

[tex]\[ A = \frac{1}{2} \text{ base} \cdot \text{ height} \][/tex]

This correctly represents the area formula for a triangle. The other options provided are formulas for different geometric figures or incorrect variations.