Question

11. A copper wire when bent in the form of an equilateral triangle has an area of 121 73 cm? If
the same wire is bent into the form of a circle, find the area enclosed by the wire.​

Answer 1

Answer:

this is one kind of

Explanation:

Area of the circle = 484 cm2

Area of the square = Side2

⇒484=Side2⇒222=Side2⇒Side=22 cm

Perimeter of the square = 4×Side

Perimeter of the square = 4×22

                                      = 88 cm

Length of the wire = 88 cm

Circumference of the circle = Length of the wire = 88 cm

Now, let the radius of the circle be r cm.

​Thus, we have:

​ 2πr=88⇒2×

22

7

 

×r=88⇒r=14  

Area of the circle = πr2

                            =

22

7

 

×14×14=616 cm2

Thus, the area enclosed by the circle is 616 cm2.

Answer 2

Answer:

198

Explanation:

ex..... copper wire area is 12173cm.

you have to find the area enclosed by the wire

therefore 12173 + add formula of triangle .

then = and will come.....

finish