Question

4. How many square metre of glass will be required for windows, which
panes, each measuring 25 cm by 16 cm?​

Answer 1

Answer:

0.48 sq m

Step-by-step explanation:

Length of the window pane = 25 cm and breadth = 16 cm

Area of one window pane = 25*16 = 400 sq cm

Area of 12 such window panes = 400*12

Area of 12 window panes = 4800 sq cm

Since 1 sq m = 10000 sq cm

So, required glass for 12 window panes = 4800/10000  

= 0.48 sq m

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Answer 2

Answer:

☞= 0.48 sq m

☞Given:

How many square metre of glass will be required for windows, which

panes, each measuring 25 cm by 16 cm?

☞To Find:

How many square metre of glass will be required for windows

☞Solution:

Length of the window pane = 25 cm and breadth = 16 cm

Area of one window pane = 25*16 = 400 sq cm

Area of 12 such window panes = 400*12

Area of 12 window panes = 4800 sq cm

Since 1 sq m = 10000 sq cm

So, required glass for 12 window panes = 4800/10000

= 0.48 sq m