Question

a rectangle is x cm long and (2x- 10) cm wide. write down the formula for its perimeter and use your formula to find the perimeter of a rectangle 6 cm wide (pls help asap thx)​

Answer 1

Answer:

formula of perimeter=6x-20

perimeter of rectangle=28 cm

Step-by-step explanation:

length=x

wide =(2x-10)

formula of perimeter of rectangle

=2{x+(2x-10)}

= 2{x+2x-10}

=6x-20 _________(1)

the perimeter of rectangle if wide is 6 cm.

2x-10=6

2x=10+6

x=8 cm

put the value of x in equation (1).

6×8-20

28 cm this is the perimeter of rectangle.

____@Deepak Razput

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