Verified answer

[tex]\large{Question:-}[/tex]

The figure shows Me Dhingra's verandah. How many square tiles is side 20cm would he need to tile the floor of the verandah?

Solutions:-

Let us divide the verandah into the rectangle 1 and 2.

Area of rectangle 1 = [tex]\sf{3m×2m=6 \:sq \:m.}[/tex]

Area of rectangle 2 = [tex]\sf{7m×2m=14 \:sq \:m.}[/tex]

Total area = [tex]\bf{(14+6) \:sq \:m = \:20 \:sq \:m = 2,00,000 \:sq \:cm}[/tex]

[tex]\begin{gathered}\qquad\qquad{(1 \:sq \:m = 10,000 \:sq \:cm).}\end{gathered}[/tex]

Area of 1 tile = [tex]\sf{20cm×20cm=400 \:sq \:cm.}[/tex]

[tex].°.[/tex] number of tiles needed = [tex]\frac{2000 \cancel{00}}{4 \cancel{00}} \:= \: \frac{2000}{4}= \:500.[/tex]

Answer:-

[tex]\begin{gathered}\qquad\qquad\qquad{ - 500}\end{gathered}[/tex]