Question

SMART PEOPLES HELP PLEASE ASAP

Answer 1

Answer:

1.4 cm

Step-by-step explanation:

C=2$\pi$r

r=C/2$\pi$

r=9/2(3.14)

r=9/6.28

r (rounded) = 1.4 cm

Answer 2

Answer: 1.4 cm

Step-by-step explanation: In this problem, we're given the circumference of a circle and we're asked to find the radius.

So let's use the formula for circumference

that involves the radius which is C = 2πr.

Since we know the circumference is 9 centimeters,

we plug 9 centimeters in for the circumference in

our formula and we have 9 cm = 2πr.

Next, we know that π is approximately 3.14 do we can

plug 3.14 in for π and we have 9 cm = 2(3.14)r.

Now, to find the radius of the circle,

we simply solve this equation for r.

Simplifying on the right side, 2(3.14)

is 6.28 and we have 9 cm = 6.28r.

Finally, we divide both sides of the

equation by 6.28 to get 1.4331 = r.

Rounding to the nearest tenth, we get 1.4.

So the radius of the circle is 1.4 cm.