Question

perimeter of rectangle is 186cm length is (5x+6) and breath is( 2x+66) find the value of x

Answer 1

Answer:

Step-by-step explanation:

Value of x=3

length=21

Breadth=72

Step-by-step explanation:

Acc. to. que.

perimeter of rect. =2(l+b)

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

186=2×5x+2×6+2×2x+2×66

186=10x+12+4x+132

-132-12+186=+10x+4x

-144+186=14x

42=14x

42/14=x

x=3

Answer 2

Answer:

Length = 2x + 66

Breadth = 5x + 6

Perimeter = 186

2(l+b)

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

=>2(7x+72)=186

=>14x+144=186

=>14x=186−144

=>14x=42

=>x= 42÷14

x=3