Jordan made a wooden square box. all sides of the wooden box are 6cm. if he wants to increase the length of all sides by 1.6 cm, what will be the perimeter and area of the new box?

The perimeter of the square wooden box is 91.2 cm

Area of the square wooden box is 346.56 sq.  cm

Step-by-step explanation:

The original side of the wooden box = 6 cm

Now, New side of the box  =  Original side of the square + 1.6 cm

                                             = 6 cm + 1.6 cm = 7.6 cm

or, the new side of the wooden square box = 7. 6 cm

(a) PERIMETER of the new box = 12 x Side of the box

                                                          = 12 x (7.6 cm)  = 91.2 cm

Hence, the perimeter of the square wooden box  = 91.2 cm

(b) Area of the new box  = 6 x

                                         = 6 x   = 346.56 sq.  cm

Hence, the area of the square wooden box  = 346.56 sq.  cm

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.