Question

Ex.6: The perimeter of a square is equal to the perimeter of a rectangle of length 14 cm and breadth 20 cm. Find the circumference of a semicircle (approx.) whose diameter is equal to the side of the square.​

Answer 1

Answer:

Step-by-step explanation:

Let the side of square be X

According to question,2×(14+20)=4×X  

On solving it we get X=17

Circumference of a semi circle =πr=  

7

22

​

×  

2

17

​

   [2r=X]

On solving it we get 26.7142857(approx)

So the circumference of a semi circle is 26.714285cm(approx)

Answer 2

Step-by-step explanation:

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given)

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given)

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×side

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20)

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128so, side= 128/4= 32

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128so, side= 128/4= 32side of square = diameter of circle(given)

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128so, side= 128/4= 32side of square = diameter of circle(given) so, radius = diameter/2= 32/2=16

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128so, side= 128/4= 32side of square = diameter of circle(given) so, radius = diameter/2= 32/2=16circumference of semicircle = 2×pie×r/2 + 2×r

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128so, side= 128/4= 32side of square = diameter of circle(given) so, radius = diameter/2= 32/2=16circumference of semicircle = 2×pie×r/2 + 2×r = 2×22/7/2+2×16

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128so, side= 128/4= 32side of square = diameter of circle(given) so, radius = diameter/2= 32/2=16circumference of semicircle = 2×pie×r/2 + 2×r = 2×22/7/2+2×16 = 352/7+32

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128so, side= 128/4= 32side of square = diameter of circle(given) so, radius = diameter/2= 32/2=16circumference of semicircle = 2×pie×r/2 + 2×r = 2×22/7/2+2×16 = 352/7+32 = 576/7

Step-by-step explanation:Perimeter of square= perimeter of rectangle (Given) length=14, breadth=20(given) Perimeter of square=4×sidePerimeter of rectangle =2(length+breadth)so, 4×side=2(l+b)1 4×side=2(14+20) 4×side= 128so, side= 128/4= 32side of square = diameter of circle(given) so, radius = diameter/2= 32/2=16circumference of semicircle = 2×pie×r/2 + 2×r = 2×22/7/2+2×16 = 352/7+32 = 576/7 =82.28cm