Question

if the perimeter of a rectangle with dimensions (2x+10) and (x+20) is 240 cm. find its dimensions

Answer 1

hii here is ur solution

hope it helps you..

Answer 2

Answer:Length = 70,Breadth =50

Step-by-step explanation:

Perimeter of rectangle = 2(L+B)

2[(2x+10)+(x+20)] = 240

4x+20+2x+40 = 240

6x+60 = 240

60 To RHS

6x = 240-60

6x= 180

x = 30

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Now solving for Length.

2(30)+10=70

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Now solving for Breadth

30+20=50

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Now for perimeter clarification

2(70+50)  

140+!00

240

Done