Question

a small indoor green house is made entirly of glass panes held with tapes.it is 30cm long,25cm wide and 25cm high.si find (a) what is the area of glass.(b) How much of tape is needed for all the 12 edges. Answer fast

Answer 1

.................... hope it helps

Answer 2

Given the length of the greenhouse= 30cm.

Given breadth of the greenhouse = 25cm.

Given the height of the greenhouse= 25cm.

(a)

We know that Area of the glass = 2(lb + bh + lh)

                                                      = 2(30 * 25 + 25 * 25 + 25 * 30)

                                                      = 2(750 + 625 + 750)

                                                      = 2(2125)

                                                      = 4250cm^2.


(b)

Length of the tape needed for all the 12 edges = 4(l + b + h)

                                                                              = 4(30 + 25 + 25)

                                                                              = 4(80)

                                                                             = 320cm^2.



Hope this helps!