Question

IFind the value of x if the
perimeter of rectangle is 186 cm.
2x+66
Sx+6​

Answer 1

Answer:

LENGTH OF RECTANGLE = (5x+6)

BREADTH OF RECTANGLE = (2x+66)

ACCORDING TO THE QUESTION ,

PERIMETER OF RECTANGLE = 2 (L + B )

=> 186 cm = 2{(5x+6)+(2x+66)}

=> 186 = 2 (5x+6+2x+66)

=> 186 = 2 (7x+72)

=> 186÷2 = 7x+72

=>93 = 7x +72

=> 93 -72 = 7x

=> 21 = 7x

=> 21÷7 = x

=> x= 3

.

SO, THE LENGTH OF RECTANGLE = (5x+6)

=> 5×3+6

=> 15 +6

=> 21 m

THE BREADTH OF RECTANGLE = (2x+66)

=> 2×3+66

=> 6+66

=> 72 m

HENCE, LENGTH OF RECTANGLE IS 21m and BREADTH OF RECTANGLE IS 72 m.

Step-by-step explanation:

Answer 2

Answer:

Length of rectangle = 5x+6

Breadth of rectangle = 2x+66

A/Q

Perimeter of a rectangle = 186 cm

NOW

=> Perimeter of a rectangle = 2 (l+b)

=> 186 cm = 2( 5x+6 + 2x+66)

=> 186 cm = 2 (7x + 72)

=> 186 cm = 14x + 144

=> 186 - 144 = 14x

=> 42 cm = 14x

=> 42/14 cm = x

=> 3 cm = x

:. x = 3 cm

:. Length = 5x+6 = (5×3)+6 = 15+6 = 21 cm

:. Breadth = 2x+66 = ( 2×3) +66 = 72 cm.

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