Perimeter of an isosceles triangle is 71 centimeters. The measure of one of the sides is 22 centimeters. What are all the possible measure of the other two side?

1 Answer
Nov 3, 2016

Possible measures of the other two sides are either, 22cm22cm and 27cm,27cm, or , 22cm22cm and 24.5cm24.5cm respectively.

Explanation:

An isosceles triangle have two sides of equal length, and another side of another length.

:. There are two measures possible for the other two sides.

  • Possibility 1.
    22cm is the measure of two equal sides.
    :. Let, x be the measure of the other side.
    :. Perimeter =(22+22+x)cm=(44+x)cm=71cm.
    :.x=27cm.

  • Possibility 2.
    22cm is the measure of one unequal side.
    :. Let, x be the measure of two equal sides each.
    :. Perimeter = (22+x+x)cm=(22+2x)cm=71cm.
    :.2x=49cm.
    :.x=24.5cm.

Therefore, possible measures of the other two sides are either, 22cm and 27cm, or , 22cm and 24.5cm respectively. (answer)

Note : To know more about isosceles triangle, please check into :
https://en.wikipedia.org/wiki/Isosceles_triangle.