Writing and Solving Equations Geometry

The triangle and rectangle have the same perimeter. Which equation can be used to solve for x?

• $3x+18=3x+6$

• $3x+18=6x+12$

• $x+18=3x+6$

• $x+18=6x+12$

Tags

CCSS.3.MD.D.8

The polygons shown have the same perimeter, what is the perimeter?

• 24 units

• 2 units

• 12 units

• 27 units

Tags

CCSS.3.MD.D.8

Both figures have the same perimeter. Which equation can be used to solve for x?

• $2x+5=x+22$

• $2x+5=25x$

• $4x+10=3x+22$

• $14x=25x$

Tags

CCSS.3.MD.D.8

Both figures have the same perimeter. Solve for x

• $x=24$

• $x=6$

• $x=58$

• $x=12$

Tags

CCSS.3.MD.D.8

The square and rectangle have the same perimeter, which equation can be used to solve for x?

• $4x=6x+6$

• $x=3x+3$

• $4x=3x+3$

• $x=6x+6$

Write an equation that can be used to solve for x, if the square and equilateral triangle have the same perimeter.

• $x=2x+1$

• $3x=8x+4$

• $3x=2x+1$

• $x=8x+4$

Both figures have the same perimeter, which equation cannot be used to solve for x?

•  $2x+64=4x+16$  

•  $4\left(x+16\right)=8\left(x+2\right)$  

•  $4x+64=8x+16$  

•  $2\left(2x+32\right)=2\left(4x+8\right)$  

Tags

CCSS.3.MD.D.8

If both figures have the same perimeter, what is the value of x?

• $x=8$

• $x=12$

• $x=16$

• $x=20$

Tags

CCSS.3.MD.D.8

Sharon and Leslie made rag rugs for their bedrooms. Sharon made a square rug 2x + 5 units on each side. Leslie made a rectangle rug x + 5 and 2x + 7. Which equation can be used to solve for x, if the rugs have the same perimeter?

• $2x+5=3x+12$

• $2x+5=6x+24$

• $8x+20=3x+12$

• $8x+20=6x+24$

Sharon and Leslie made rag rugs for their bedrooms. Sharon made a square rug 2x + 5 units on each side. Leslie made a rectangle rug x + 5 and 2x + 7. If their rugs have the same perimeter, what is the value of x?

•  $x=12$ 

•  $x=8$ 

•  $x=4$ 

•  $x=2$