Question

The perimeter of an isosceles triangle is 18 cm if one of equal side is 5 3/4 cm long and find the measures of third side​

Answer 1

Answer:

P= sum of the 3 sides

18= 23/4 + 23/4 +X

X= 18-23/4-23/4 = 18-46/4

X= 18-23/2 = 36/2 - 23/2 = 13/2

X = 13/2

PLEASE MAR ME AS BRAINLIEST

Answer 2

Explanation:

in an isosceles triangle 2 sides are equal.

perimeter of triangle =sum of all sides

18 cm= 5 3/4 +5 3/4 + x ( x = to unknown side)

18 cm=5.75+5.75+x

18 cm=11.5+x

18cm -11.5 cm= x

6.5= x