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Help me! I need help with my homework! Ty! :)

Help me! I need help with my homework! Ty! :)-example-1

2 Answers

5 votes

Answer:

763.02

Explanation:

Area of a circle is πr²

so the area of the whole circle is the sum of both radius

9+9 = 18

so Area = 3.14 × 18² = 1017.36

then we subtract the white part to leave the shaded part

area of the white circle = 3.14 × 9² = 254.34

then 1017.36 - 254.34 = 763.02

User Mustafa Magdy
by
6.6k points
3 votes

Answer:763.02

Explanation:

r=9

R=r+9=18


A=R^(2)\pi-r^(2)\pi = \pi (R^(2)-r^(2))=\pi =243\pi \\\pi =3.14\\243\pi=763.02

User Sertaconay
by
6.9k points