Question

please solve this question please with solution please

Answer 1

$<b>$(a) Rectangle :

Length = 3x

Breadth = x

Perimeter = 48

Also,

Perimeter = 2 ( Length + Breadth )

•°•

2 ( 3x + x ) = 48

2 ( 4x ) = 48

4x = 24

$\large\mathsf\green{\boxed{x \ = \ 6}}$




(b) Triangle :

Each side = x - 2

Perimeter = 15

Also,

Perimeter = 3 ( Side )

•°•

15 = 3 ( x - 2 )

x - 2 = 5

x = 5 + 2

$\large\mathsf\green{\boxed{x \ = \ 7}}$




(c) Rectangle :

First side = x - 2

Second side = 2x - 3

Third side = x - 2

Fourth side = 2x - 3

Perimeter = 8

Also,

Perimeter = Sum of all sides

•°•

x - 2 + 2x - 3 + x - 2 + 2x - 3 = 8

6x - 10 = 8

6x = 18

$\large\mathsf\green{\boxed{x \ = \ 3}}$