Answer:
The outering is 11 cm so let's see what the Area is. We use the formula Area of a circle:
A = πr² = πd2/4
If:
Radius, r = 11 cm
Then:
Diameter, d = 22 cm
Circumference, C = 69.115038378975 cm
Area, A = 380.13271108436 cm²
now all we need to do is subtracts the inner circle Area.
If:
Radius, r = 9 cm
Then:
Diameter, d = 18 cm
Circumference, C = 56.548667764616 cm
Area, A = 254.46900494077 cm²
Thus: 380.13271108436 cm² - 254.46900494077 cm² =
125.6637061436 cm²
Step-by-step explanation:
The answer would be A. 6.50. This is because 2.52 would be about 2.50 and 4.03 would be about 4 and 2.50 + 4 = 6.50
Answer:
0
Step-by-step explanation:
27+(-15)+(-12)=
= 27-15-12=
=0
X+(x+2)+(x+4)=51
3x+6=51
3x=45
x=15
Final answers: 15, 17, 19
Answer:
Step-by-step explanation:
Given
=
Now taking LCM of denominators 2 and 3 we get 6
=
=
=
Hope it will help :)