Formula for the Area of a Triangle

The amount of space a triangle occupies is its area. A triangle is a geometric shape with three sizes - the length of each side can be different or same. When all three sides of a triangle are of equal length, it's an equilateral triangle, whereas you have an isosceles triangle if two of its sides are equal in length.

area of triangle

Area of a Triangle Formula is,

Area of triangle = $\frac{1}{2}bh$

 

Where 

b is the base of the triangle. 

h is the height of the triangle.

Area of a Triangle Problems 

Some solved problems on area of a triangle are given below:

Solved Examples 

Question 1:  Find the area of a triangle of base 4 cm and height 7 cm? 

Solution:  

Given, 

b = 4 cm 

h = 7 cm   

Area of a triangle 

= $\frac{1}{2}bh$  

= $\frac{1}{2}$ * 4 * 7 cm2 

= 14 cm2

 Question 2:  Find the area of a triangle of base 18 cm and height 25 cm? 

 Solution:   

Given, 

b = 18 cm 

h = 25 cm   

Area of a triangle 

= $\frac{1}{2}bh$  

= $\frac{1}{2}$ * 13 * 17 cm2

= 110.5 cm2

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