4. A rope is in the shape of a rectangle. Its length is 28 cm and area is 896 cm'. Find the breadth of
the rectangle. If the same rope is reformed in the shape of a square, what will be the measure of
each side. Also find which shape encloses a greater area?
Answers
Answer:
Bohot bada question hai. Sorry na bta rhe
Answer:
Breadth of rope is 32 cm and side of square is 45 cm. Also area of square is greater then area of rectangle.
Step-by-step explanation:
Given,
Length of rope = 28 cm
area of rectangle = 896 cm²
To find,
Breath of rope = ?
side of square = ?
Solution,
area of rectangle = length × breadth
896 = 28 × breadth
breadth = 896/ 28
breadth = 32 cm
Now,
perimeter of rectangle = perimeter of square. (1)
perimeter of rectangle = 2× (length + breadth)
= 2× ( 28+ 32)
= 2× 60
perimeter of rectangle = 180cm
perimeter of square = 4× side
180 = 4 × side. (By (1) )
side = 180/4
side = 45cm
Area of square = side × side
= 45×45
= 2025 cm²
2025 is greater then 896
therefore area of square is greater then area of rectangle.