![]() the word “isosceles” can also be used for other geometric figures like a trapezoid. Hence, the isosceles Triangle is said to be a closed shape or space. it is a polygon which is a two-dimensional geometric figure made with the union of different points (not on the same line) these points are joined by line segments. The word isosceles is derived from the Greek terms “isos” (equal) and “Skelos” (leg). So, if you want the complete information, start this 5-minute journey with us. Hence, angles formed by these two sides will also be equal to each other and is known as vertex angle. for example, in the following figure, line a is equal to the opposite line a. according to the lengths of sides, the isosceles triangle considers a special case from 6 different types of triangles. it has a pair of equal and the remaining one of unequal length sides. Hence two equal sides that make the angle of 90 degree between them make up the base and the height =3m each.In Geometry, An isosceles triangle is a polygon having three sides. Solution:Īs it is given that the angle weight between the two equal sides is 90 degrees so we will conclude that it is an isosceles right-angled triangle. ![]() (The two equal sides make an angle of 90 degree between them). Example 2:Ĭalculate the distance travelled by a man while walking along the fence of a triangular field whose two sides are equal to 3 m and the longest side is3√2m. Therefore, the perimeter of an isosceles triangle = 2*5+6= 16 cm. We know that the formula to calculate the perimeter of an isosceles triangle is P = 2s + b units. Now, at last let us learn how to find perimeter of an isosceles triangle with an example: Example1:įind the perimeter of the isosceles triangle when the length of the two equal sides is 5 cm and third side is 6 cm. Perimeter of isosceles triangle may help to calculate the distance travelled along a figure or an area of land.Perimeter of an isosceles triangle can be used to cut a triangular plot of land.In graphic design and decorative arts isosceles triangles have been a frequent design element in cultures around the world.Architecture of Middle Ages shows importance of isosceles triangle shape.Isosceles triangles appear in the architecture as the shapes of pediments and gables.Fencing off a triangular area to plot a crop in a field.The practical uses of perimeter of the isosceles triangle are: *Note: The perimeter of the isosceles triangle changes with the change in the value of congruent sides and base. Perimeter of the right isosceles triangle =2*base + hypotenuse. ![]() Perimeter of isosceles triangle = 2*s + b, where s represents the length of two congruent sides and b is the length of the base. So, the perimeter of a right-angled isosceles triangle can be found out by adding twice the equal side with length of the hypotenuse. The side opposite to the right angle that is 90° forms the hypotenuse. Right isosceles triangle is one in which one angle is equal to 90 degrees and the base and the height are always equal. Perimeter of the isosceles triangle= sum of all sides Right isosceles triangle The perimeter of an isosceles triangle can be measured by adding up all the sides of the triangle, i.e. Two Greek words ‘peri’ meaning around and ‘metron’ meaning measure come together to form a single term perimeter which means the measure of boundaries. ![]()
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