can u help me w/ this problem: A rectangular pane of glass measuring 12 in by 18 in is surrounded by a frame tat is 2 in. wide. what is the area of the window, including the frame?
um.. i tryed 14*20= which does not equal 353in.^2 (the correct answer)
then i tryed 18*2+12*2+4=64????????????????? if u noe plz help
2006-09-24 05:46:59 · 4 answers · asked by juice. 3 in Education & Reference ➔ Homework Help
First, just find the area of the glass
12*18=216
Then, find the area of the frame
like I did here:
http://img165.imageshack.us/img165/4345/windowqk0.png
Sides + middle + corner
OR, a simpler method would be to do this:
First, take the top and then add 2 for one side and 2 for the other. So it becomes 16. Then do the same for the second side and it becomes 22.
Do 16in x 22in and you get 352in^2
2006-09-24 05:48:33 · answer #1 · answered by ĵōē¥ → đ 6 · 1⤊ 0⤋
ok 12+2+2 because the frame is on both sides = 16
18+2+2 for the same reason = 22
area = lenght by breath ,
there fore 16 by 22 =352 ich squared
2006-09-24 12:51:20 · answer #2 · answered by Belosnezhka (aka Gex) 6 · 0⤊ 1⤋
you should just add 4 to both numbers (you have 2 inches of frame on BOTH sides) and multiply the numbers. I get 352 inches or 29 1/3 ft.
2006-09-24 12:55:07 · answer #3 · answered by Casey M 2 · 0⤊ 0⤋
The "correct answer" is wrong. This sometimes happens. Really.
The correct setup is: (12*18+2*2+2*2)*2/[(2*2)/2]
That will give you the REAL answer.
2006-09-24 12:57:55 · answer #4 · answered by Anonymous · 0⤊ 0⤋