What is Acute Triangle?
An acute-angled triangle is a type of triangle in which all the three internal angles of the triangle are acute, that is, they measure less than 90°.
Here are some examples of acute triangles.
Types of Acute Triangles
There are broadly three types of acute triangles:
| Equilateral Acute Triangle: | Isosceles Acute Triangle: | Scalene Acute Triangle: |
All the interior angles of an equilateral acute triangle measure 60°. It is also known as an equiangular triangle. | Two angles of an isosceles acute triangle measure the same, just like its two sides. | All three sides and internal angles of a scalene acute triangle are unequal, that is, all angles measure less than 90 degrees. |
Area of an Acute Triangle
Area of a triangle = 1⁄2 Base X Height
Here AD is the height, and BC is the base. So, the area can be calculated by simply putting in the values in the above formula.
| Fun Facts about Acute Triangles: – The angles of an acute triangle add up to 180°, because of the Angle Sum Property. – A triangle cannot be acute-angled and right-angled at the same time. – A triangle cannot be obtuse-angled and acute-angled simultaneously. |
Acute Triangles in Nature:
Acute triangles can be seen in a variety of forms. Here are some real-life examples of acute triangles:
