The isosceles triangle has a perimeter of 7.5 m.

Which equation can be used to find the value of x if the shortest side, y, measures 2.1 m?

A.2x – 2.1 = 7.5
B.4.2 + y = 7.5
C.y – 4.2 = 7.5
D.2.1 + 2x = 7.5

The isosceles triangle has a perimeter of 75 m Which equation can be used to find the value of x if the shortest side y measures 21 m A2x 21 75 B42 y 75 Cy 42 7 class=

Respuesta :

D) 2.1+2x=7.5

All the sides added together will equal the perimeter
it's isosceles triangle, so,

X+X+2.1=7.5
so 2.1+2x=7.5

so ANSWER is D !