Isosceles Trapezoid Formula

As a quadrilateral, the trapezoid is a four-sided shape. The unique property about the trapezoid is that it has only one pair of parallel sides. Isosceles trapezoid is a type of trapezoid where the non-parallel sides are equal in length.
Isosceles trapezoidThere are two isosceles trapezoid formulas
The Perimeter of isosceles trapezoid formula is
\[\large Perimeter\;of\;Isosceles\;Trapeziod=a+b+2c\]
Where,
a, b and c are the sides of the trapezoid
The Area of isosceles trapezoid formula is
\[\large Area\;of\;Isosceles\;Trapeziod=h\left [\frac{a+b}{2}\right]\]
Where,
a and b are the parallel sides of trapezoid.
Solved Examples
Question 1: A trapezoid has legs 8 cm each in length. Its bases are 10 cm and 15 cm respectively. Calculate its perimeter.
Solution:
Given:
a = 10 cm
b = 15 cm
c = 8 cm
Perimeter is given by: p = a + b + 2c
= 10 + 15 + 2 $\times$ 8
= 41 cm.

Leave a Comment

Your email address will not be published. Required fields are marked *