Question

Find the perimeter and area of a rectangular piece of a land measuring 25/2 m by26/5 m.how much area of land is left unused if 4 small square flower beds of side lenth 1 m are made at the centre

Answer 1

Answer:

$Length: \frac{25}{2} =12.5 \\</p><p>Breadth: \frac{26}{5} = 5.2$

Perimeter of rectangle: 2(l+b)

= 2(12.5+5.2)

= 2(17.7)

= 35.4m

$Area of Rectangle: l \times b \\</p><p> = 12.5 \times 5.2\\</p><p> = 65m²$

$Now, \\</p><p>Area \: of\: 4\: small\: sq.\: flower\: beds\: of\: side\: 1 m: \\</p><p>Area\: of\: 1\: small\: sq.\: flower\: beds= s \times s \\</p><p> = 1 \times 1 \\</p><p> = 1m²$

$Area\: of\: 4 Small\: sq.\: flower\: beds= 4 \times 1 \\</p><p> = 4m² = Used\: Area$

Unused Area= Total Area - Used Area

Unused Area = 65m² - 4m²

Unused Area = 61m²