Question

a circle of radius 4cm is cut out from a circular piece of paper of radius 10 cm find the area of the left-over paper piece if the centre of both circles is same​

Answer 1

Step-by-step explanation:

I hope this helps you.....

Answer 2

The required area of left over piece is 264 cm ²

Step-by-step explanation:

Given: Radius of small circle ; r= 4 cm

          Radius of large circle ;R= 10 cm

Now we have to find the area of leaf over is one small circle i cut from a larger circle having same center

Therefore

As we know area of circle is give by πr² where r is the radius of circle

The required area = area of larger circle - area of smaller circle

$\text {Required area } = \pi R^2- \pi r^2 \\\\\Rightarrow \text {Required area } = \pi (10^2-4^2) =\dfrac{22}{7} (100-16)\\\\\Rightarrow \text {Required area } =\dfrac{22}{7} \times 84 = 22 \times 12= 264cm^2$

Hence the required area is 264 cm ²

#Learn more

Find the area of a circle whose circumference is 22cm

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