Question

A wooden door,2 m 8 cm high and 1.2m wide has 4 glass panes fitted on it. each pane is 40 cm by 20 cm. what is the area of the wood

Answer 1

height =208 cm and width =120 cm so its area= (208 × 120) cm^2=24960 cm^. area of 4 glass panes={4×(40×20)}cm^2=3200cm^2. so the area of the wood =(249600 -3200)cm^2=246400 cm^2

Answer 2

Answer:

Here the Right answer  

Area of the wood =2.176 m²

Step-by-step explanation:

Height of the wooden door=2.08 m

Its width=1.2 m

So, total area of wooden door=2.08×1.2=2.496 m²

The dimension of each pane is 40 cm by 20 cm that is 0.4 by 0.2 m

Area of each glass pane=(0.4×02)=0.08 m²

So area of 4 glass panes=4×0.8=0.32 m²

Therefore, area of wood= total area of wooden door-area of 4 glass panes

2.496 m²-0.32 m²=2.176 m²