In 16-17, the where at the figure is given. Find the length of the indicated side

Question

16.)Perimeter: 6x 

length: x+3 

width: 2x+4 

shape: triangle

 

17.)Perimerter: 10x+6

shape: square

length: 3x-3 

width: unknown 

Answer 1

16)

 

first side= x+3

 

second side = 2x+4

 

let's consider third side = a

 

perimeter= 6x

 

addition of all side = perimeter

 

x+3 + 2x+4 + a =6x

 

3x+ 7 + a =6x

 

7+a =3x

a=3x-7

 

so third side= 3x -7

 

 

17.)Perimerter: 10x+6
shape: square
length: 3x-3
width: unknown

 

In square all sides are equal

perimeter=4(side)=4(3x-3)

 

10x+6= 4(3x-3)

 

10x+6=12x-12

 

18=2x

 

9=x

width=length=3x-3=3(9)-3=27-3=24