Question

the radius of circle 14 cm. find the radius of circle whose area is 4 times the area of the
given circle

Answer 1

Answer:

Radius of required circle = 28 cm

Step-by-step explanation:

The radius of given circle is 14 cm

Area of circle = πr²

Substitute the values and you get

Area of circle = 22/7 x 14 x 14

                      = 616 sq.cm

Now we cannot find the radius of the required circle directly but we can find the area

We want a circle whose area is 4 x area of given circle

Therefore area of required circle = 4 x 616

                                                        = 2464 sq.cm

The area of required circle is 2464 sq.cm

Substitute the values and you get

2464 = πR²

2464 x 7/22 = R²

R² = 784

Therefore R = 28 cm

Hope this helps and mark me as brainliest if my answer helped you.

Answer 2

Answer:

hence the ans is 28 cm

this is the right ans