Question

How many square metre of glass will be required for windows, which has 10 panes each measuring 25 cm by 16 cm

Answer 1

Hi,

Dimensions of the each glass pane is,

Length = l = 25 cm,

Breadth = b = 16 cm

Area of the one pane = length × breadth

= 25 cm × 16 cm

Area of the 10 panes = 10 × 25cm × 16 cm

= 10 × 25 × ( 1/100 ) m × 16 × (1 /100)m

= ( 4 / 10 ) m^2

= 0.4 square meters.

Therefore ,

0.4 square meter glass required for windows.

I hope this helps you.

:)

Answer 2

Length=25c.m

Breadth=16c.m

Area=l*b

=25*16 c.m

=400 sq.cm

How many square metre of glass will be required =400 sq cm*10

=4000 sq m