Question

9. Find the area of glass that will be required for a window, which has 12 panes, each pane
measuring 25 cm by 16 cm.​

Answer 1

Answer:

area of 1 glass = 2(l+b)

= 2×(25+16) cm

= 2×41 cm

= 42 cm

area of 12 glass= 42×12

= 504 cm

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Answer 2

Answer:

l =25 ,b=16

l*b= 25*16= 400

400*12= 4800