Answer:
- b
- b
- a
- b
- c
Solution:
- D=2r or 2×r
D=(2)(9)
D=18cm
2. A = π r²
The area of a circle is pi times the radius squared (A = π r²)
3. 3.14×8=25.12 and then multiply it by 2
25.12×2=50.24cm²
4.To find the radius, divide the area by pi, then take the square root.
A=πr². Find the radius:
Area=36m². 36m² =3.14 r²
π=3.14. 3.14 3.14
r=? √11.54=√r²
3.39=r
5.A=πr²
A=(3.14)(5)²
=(3.14)(25)
=78.5m²
Step-by-step explanation:
I hope it helps po
