Question

Two circles of diameter 8 cm each are stuck together to form the given
figure. Find the perimeter of the figure. See Fig. b.
What is the area of the given figures?
​

Answer 1

Answer:

this is correct answer

is se oopar vala correct nhi h

Answer 2

The area of the figure is 50.28 cm² and the perimeter of the figure is 35.14 cm

Given:

The diameters of two circles = 8 cm

Both are stuck together  

To find:
Find the perimeter and area of the figure.  

Solution:

Formula used:

Perimeter of the circle = 2πr

Area of the circle = πr²

Where r is the radius of the circle.

Given the diameter of the circles, d = 8 cm  

=> Radius of the circle r = 4 cm

Here half circle will form a complete circle,

From the formula, the Area of the circle = πr²

Area of the circles = π(4 × 4) = (3.14)(16) = 50.28  

Area of the figure = 50.28 cm²

From the formula, Perimeter of the circle = 2πr

Perimeter of the circle = 2π(4) = 25.14 cm

As we can see that both circles are stuck within 3 cm

Then the diameter which is not intersected = 8 cm - 3 cm = 5 cm

Perimeter of the figure = 25.14 cm + 2(5cm)

= 25.14 cm + 10 cm

= 35.14 cm

Therefore,

The area of the figure is 50.28 cm² and the perimeter of the figure is 35.14 cm

#SPJ3