Question

the length of a rectangle is 20 and its diagnol ia 34.Find it's breadth and perimeter

Answer 1

as we know that a rectangle has 90 at its corner ,

then, by pythagoras theorem,

(34)^2 = (20)^2 + (breadth)^2 

1156 = 400+ (breadth)^2

1156-400 = (breadth)^2 

756= (breadth)^2 

root 756 = breadth 

27.4954541... = breadth 

which can be written as 27.5 

then ,

breadth= 27.5 

area of rectangle = length*breadth

here, area of rectangle =27.5 *20

area of rectangle =  550 

perimeter of rectangle = 2(l+b)

perimeter = 2(27.5+20)

perimeter = 2*47.5

perimeter = 95

i hope this will help 


- by ABHAY

Answer 2

I hope it helps you.....


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