Question

Write the equation called for in each of the following statements. Refer to Appendix \(A,\) "Summary of Facts and Formulas," if necessary.Express the area \(A\) of a triangle as a function of its base \(b\) and altitude \(h\).

Short answer

The area A of a triangle, expressed as a function of its base b and altitude h, is given by the equation A(b, h) = 1/2 * b * h.

Step-by-step solution

Identify the Variables

Identify the variables involved in the problem. For the area of a triangle, the key variables are the base (b) and the altitude (h).

Recall the Area Formula

Recall the formula for the area of a triangle. The area (A) of a triangle is given by the formula A = 1/2 * base * height.

Express the Area as a Function

Write the area as a function of the base and altitude. Replace the word 'base' with 'b' and 'height' with 'h' in the formula to express the area A as a function of b and h.

Key concepts

Understanding Mathematical Functions

When we talk about mathematical functions, we refer to a special kind of relationship between two sets of numbers or variables. In this context, a function takes an input and provides a unique output based on the rule it defines.

For example, if we denote the area of a triangle as a function, we can write it as \( A(b,h) \). Here, \( A \) is the function that tells us how to calculate the area from the base \( b \) and the altitude \( h \). This helps us understand how changing one variable, such as increasing the base, affects the area of the triangle without altering the other variable (the altitude in this case).

Understanding functions in mathematics is crucial because they are the foundation for representing and solving real-world problems in various fields, from physics to economics. Functions help encapsulate relationships in a manageable, predictable formula that can be analyzed and manipulated to predict outcomes.

Geometry Formulas

Geometry formulas are tools that allow us to calculate different properties of geometric figures, such as area, volume, and circumference. Specifically, for the area of a triangle, the formula is quite straightforward: \( A = \frac{1}{2} \times b \times h \), where \( A \) stands for area, \( b \) for base, and \( h \) for altitude.

In practice, knowing this formula enables us to solve a wide range of problems. For instance, if you're a designer trying to create a triangular pattern with a specific area, you'll need to calculate the base and altitude that meet your criteria. It is vital for students to memorize these formulas and understand their derivations, as doing so provides a deeper grasp of the concepts and principles that govern geometric shapes.

Problem-Solving in Mathematics

Problem-solving in mathematics is about understanding the problem, identifying the relationships and patterns involved, and applying the appropriate methods to find a solution. The steps outlined in the original exercise exemplify this approach.

First, by identifying the variables (base and altitude), students are setting the stage for the problem. Next, by recalling the area formula, they are bringing in the necessary tool (the formula). Lastly, by expressing the area as a function of base and altitude, they synthesize their understanding into a practical solution.

This structured approach to problem-solving not only helps in learning and applying mathematical concepts but also encourages critical thinking and reasoning skills, which are essential for educational growth and real-life challenges.