the perimeterof an isosceles triangle is 18 cm if one of the equal side is 23/4 cm long find the measure of third side
Answers
Hello friend ,here is your answer
First let me give you some information about this:-
#In an isosceles triangle two sides are equal and rest 1 side is unequal
#perimeter of a triangle=sum of all sides
Now let us solve the question,
Let the third (unequal) side be x
According to the question,
23/4+23/4+x=18
46/4+x=18
x=18/1-46/4
x=72-46/4
x=26/4=6.5 cm
Therefore the third side of the isosceles triangle us 6.5cm
Please mark as brainliest answer
let triangle name be ABC ,therefore sides are AB, BC, & CA . let AB = AC=23/4 .
Now we know perimeter = sum of sides ...
we will take the 3rd side as x
now according to question
x + 23/4 + 23/4 ( sum of sides)=18(given)
x + 46/4 = 18
x + 23/2 =18
x= 18-23/2
x =(36-23)/2
x=13/2
hence the 3rd side is 13/2 or it can be written as 6.5