Add the lengths of the 3 sides to get the perimeter.
There is no rule for the perimeter of an acute triangle. You simply need to add the sides.
The perimeter of a triangle is the sum of its three sides.
The perimeter of a triangle is the sum of its 3 sides
Sides aren't acute, angles are. A triangle with three acute angles would be called (appropriately enough) an acute triangle.
The perimeter of a triangle is the sum of its 3 sides
The perimeter of a triangle is the sum of its 3 sides
They both have 3 sides but an isosceles triangle has two equal sides whereas an acute triangle with different acute angles has no equal sides and is said to be a scalene triangle, or an acute triangle with three equal acute angles (of 60° each) and three equal sides is called an equilateral triangle.
An acute triangle may have three, two, or no congruent sides.
If it is an equilateral triangle with 3 equal sides of 4cm then its perimeter is 12cm
An acute isosceles triangle has three acute angles (
acute triangle
acute triangle