Answer:
141.4 sq cm
Step-by-step explanation:
to find the area of the outer circle with a smaller circle inscribed within, you find the area of each and subtract the smaller area from the larger
the radius of the smaller circle is 2
we have to find the radius of the larger circle so we use what we know about its circumference:
C = 2πr
43.96 = 2πr
21.98 = πr
21.98 / π = r
r ≈ 7 cm
now use r = 7 to find area of larger circle:
A = πr²
A = π49
Area of smaller circle: 4π
Area of larger circle without including inner section is 49π - 4π = 45π
45π ≈ 141.4 sq cm
Answer:
-19
Step-by-step explanation:
It is a non repeating decimal
Answer:
Yes
Step-by-step explanation:
8 73/
100=8.73
Answer:
x=65°
Step-by-step explanation:
All angles in a triangle add up to 180°
So 180-85-33=62°
90-62=28°
180-87-28=65°
Answer: x=3
Step-by-step explanation:
3 less than 5 times a number" --> 5x−3
"number increased by 9" --> x+9
The sum of 24
5x−3+x+9=24
6x+6=24
6x=18
x=3
Therefore, the number is 3
