How to Find the Area of a Triangle

How to Find the Area of a Triangle

Students often seek how to find the area of a triangle. However, triangles look simple and versatile but are fundamental shapes in geometry. Thus, calculating the area of a triangle is a base knowledge that lays the foundation for more advanced geometric concepts.  Notably, there are many triangles in the field of geometry including Triangles Based on Sides which include:

  • Equilateral Triangle
Equilateral triangle

Equilateral triangle are triangles that have all its three side lengths measuring the same.

  • Isosceles triangle

Notably, when a triangle has two sides of its lengths equal in measurements or congruent it gets categorised as an Isosceles triangle.

  • Scalene triangle
scalene triangle

A triangle qualifies to be a scalene triangles when none of the sides of its triangle are equal.

Additionally, triangles are also known Based on Angles. Hence, On the basis of angles, triangles are classified into the following types:

  • Acute Triangle

 When all the angles of a triangle are acute, they measure less than 90°.

  • Right Triangle

Occurs when one of the angles of a triangle is 90°, it is called a right-angled triangle or right triangle.

  • Obtuse Triangle

Obtuse triangles have angles that measure up to more than 90°. It is in the measure of the angle that the triangle gets called an obtuse-angled triangle.

Thus, most triangles are named after the measurements of their lengths or angles.

For the start, we will go up close on triangles based on angles. In this blog, we will follow through on a journey of the principles and methods that empower one to find the area of a triangle with precision. Ease the process of calculating the area of a triangle with this comprehensive guide. Get to learn of step-by-step methods and key principles for accurate geometric calculations. Learnerscamp is a dedicated platform designed to assist learners in comprehensively understanding the concept of area. Through practical questions and clear explanations, Learnerscamp provides the essential resources to help you grasp the fundamentals of how to find the area of a square, how to find the area of a square , how to find the area of a circle as well as other shapes.

How to Find the Area of a Triangle

Before we delve into the calculations of how to calculate the area of a triangle, let’s familiarize ourselves with the basic components of a triangle. A triangle is a three-sided polygon with three angles that emerge out of the three corners that curve out of its shape.

In the field of mathematics, the corners are commonly referred to as vertices. They form the zero dimensional points on the triangle while the slides that knit them up, commonly referred to as edges are the single or the one-dimensional line segments. Thus, the interior of any given triangle forms a two-dimensional region.

Therefore, to find the area of a triangle, we utilize a formula that involves the base and height of the triangle.

Area of a Triangle (A) = 1/2 * base * height

A = 1/2 * b*h

where :

base(b) is the length of the base of the triangle

height(h) is the height, the perpendicular distance from the base to the opposite vertex.

Identify the Base and Height: Begin by identifying the base (b) and the height (h) of the triangle. The height is the perpendicular distance from the base to the opposite vertex.

Plug Values into the Formula: Substitute the values of b and h into the area formula. Ensure consistency in units to obtain accurate results.

Perform the Calculation: Execute the calculations systematically, following the order of operations. Remember that the formula involves multiplication and division

Finalize the Result: The result obtained represents the area of the triangle. Express it in square units, matching the unit of length used for the base and height.


Find the area of a triangle with the base measurement of 6 cm and 7 cm to the height?


using the formula, A = 1/2 * base * height


base(b) : 6cm

Height(h) : 7 cm

let us substitute the values

A = 1/2 * 6 * 7

A = 21cm2

Understanding how to find the area of a triangle extends beyond mathematical exercises:

  • Construction: Builders use triangle area calculations when designing roof structures and determining material quantities.
  • Surveying: Surveyors apply triangle area formulas in land measurements, aiding in the calculation of irregularly shaped plots.

As we embark on the journey of how to find the area of a triangle, the formula A=1/2 ​×b × h becomes our guiding principle.  Thus, mastering how to find the area of a triangle requires to have a clear understanding of the base b and the height h.

Conclusively, the next time you encounter a triangle in your geometry problems or real-world applications, remember that the area of a triangle is a fundamental concept within your mathematical toolkit.

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