The length and breadth of a room are 3 meter and 4 meter. what is the length of the largest metallic rod that can be placed in it

Length = l = 3 m ,

Breadth = b = 4 m

Length of the Longest rod placed in  

the room = length of the diagonal of the floor  

= √ l² + b²

= √ 3² + 4²

= √ 9 + 16

= √ 25

= 5

I hope this helps you.

35-60 students are taking math.

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.