Question

2. Find the breadth of a rectangular plot of land, if its area is 440 m² and the length is 22 m. Also find its perimeter
3. Find the area of a square park whose perimeter is 320 m
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Answer 1

Answer:

2.Area =length×breadth

⇒22×(breadth)=440

            

breadth=20 cm

Perimeter =2(length×breadth)

2(20+22)=2×42=84 m

3.Given, 

Perimeter of square park = 320 m 

Perimeter of a square = 4 × side 

⇒ 320 = 4 × side

⇒ 320 ÷ 4 = side

∴ Each side = 80 m 

Area of a square = side × side 

∴ Area = 80 × 80 

= 6400 m2

Hence, the area of the square park is 6400 m2