Question

Calculate each shaded area. All measurements are in centimetres. ​

Answer 1

Answer:

Given:-

radius of the inner circle = 7cm

radius of the outer circle = 14cm

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To Find:-

the area of the shaded part.!

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Solution:-

area of the shaded part: area of outer circle- inner circle

area of the outer circle

$=\pi \: {r}^{2} \\ = \frac{22}{7} \times 14 \times 14 = 616 {cm}^{2}$

area of the inner circle:-

$=\pi \: {r}^{2} = \frac{22}{7} \times 7 \times 7 = 154 {cm}^{2}$

so area of the shaded region = 616-154

area of the shaded region $\mathbb{\boxed{\purple {=462\:cm^2}}}$

hope this helps.!

Answer 2

Answer:

Shaded area = pi r²- pi r²

=22/7×14×14 - 22/7×7×7

= 616 - 154

= 462 cm² Ans

Step-by-step explanation:

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