Question

In the given figure the radius of circle 1 is 7cm and the radius of circle 2 is 14cm find the area of the portion which is red colour​

Answer 1

Answer:

Solution

⇒ Here, Radius of circle r=7cm

⇒ Area of circle =πr

2

=

7

22

×(7)

2

=154cm

2

⇒ Side of equilateral triangle is 14cm.

⇒ Area of equilateral triangle =

4

3

×(side)

2

⇒ Area of equilateral triangle =

4

3

×(14)

2

⇒ Area of equilateral triangle =

4

1.73

×196=84.87cm

2

⇒ ∠A=60

o

[ Angle of equilateral triangle ]

∴ θ=60

o

⇒ Area of sector =

360

o

θ

×πr

2

⇒ Area of sector =

360

o

60

o

×

7

22

×(7)

2

∴ Area of sector =25.66cm

2

⇒ Area of shaded region = (Area of circle + Area of equilateral triangle ) - 2×Area of sector

⇒ Area of shaded region =(154+84.87)−51.32=187.55cm

2

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Step-by-step explanation:

area of circle

Answer 2

i just wanted coins

Step-by-step explanation:

i just wanted coins