Question

this is 100 point questions, give anser and help me​

Answer 1

Here,ᐃABC≅ᐃDEF

So,AB+BC+CA=DE+EF+FD

⇢ 2x-1+3x+2x+2=18+6x+3x+9

⇢ 7x+1=9x+27

⇢ 7x-9x=27+1

⇢ 2x=28

⇢ x=$\frac\large{28}{2}$

⇢ x=14

Therefore,In ᐃABC,

AB=2x-1=(2×14)-1=27cm

BC=2x+2=2×14+2=30cm

CA=3x=3×14=42cm

In ᐃDEF,

DE=18cm

DF=6x=6×14=84cm

EF=3x+9=3×14+8=51cm

Answer 2

Answer:

Here,ᐃABC≅ᐃDEF

So,AB+BC+CA=DE+EF+FD

⇢ 2x-1+3x+2x+2=18+6x+3x+9

⇢ 7x+1=9x+27

⇢ 7x-9x=27+1

⇢ 2x=28

⇢ x=\frac\large{28}{2}

⇢ x=14

Therefore,In ᐃABC,

AB=2x-1=(2×14)-1=27cm

BC=2x+2=2×14+2=30cm

CA=3x=3×14=42cm

In ᐃDEF,

DE=18cm

DF=6x=6×14=84cm

EF=3x+9=3×14+8=51cm