Answer:
7/20
Step-by-step explanation:
1.) 9 cm
2.) 5 cm
3.) 10 in
4.) 4 in
Answer:
scale factor = 5
Step-by-step explanation:
To determine the scale factor calculate the ratio of corresponding sides of the enlargement to the original, that is
scale factor =
=
= 5
Area of the circle outside
= πr2
= π(5)2
=25 π
Area of the bigger circle inside
= π x(3)2
= 9 π
Area of the smaller circle inside
= π x (2)2
= 4 π
Area of shaded region
= 25π - 9π - 4π
= 12π square unit
Answer: The answer is actually C
Step-by-step explanation: