Math, asked by sreya8b, 2 months ago

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Answered by Aashishking1
3

Answer:

(a) 5852m²

(b) 44m²

Step-by-step explanation:

(a) Area of two concentric circles = 2*value of pie (R²-r²)

= 2 *22/7 (70²-63²)

= {2 *22/7(4900 - 3969)}m²

= {2 *22/7*931}m²

= {2 *22*133}m²

= 5852m²

(b) Radius of inner circle = 63 m

So, circumference = {2*22/7*63}m²

= 396 m²

Radius of outer circle = 70 m

So, circumference = {2*22/7*70}m²

= 440m²

Hence, Difference = 440m² - 396m²

= 44m²

Answered by Anonymous
0

Answer:

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