Question

can u help meit saysTyra brought a lollipop with a diameter of 2 and 1/2 in what is the circumference of the lollipop to the nearest tenth of an inch a 3.9 in B 15.7 in 6.3 or d7.9 in

Answer 1

D. 7.9 inches

Step-by-step explanation:

From the question, we've been given diameter to be 2 1/2 inches and asked to find the circumference of the lolli-pop. To do this, we'll use the below formula;

`C=2\pi r`

where C = circumference and r = radius.

But we know that the diameter of a circle is twice its radius as shown below;

`d=2r`

So if we substitute d = 2r into our 1st equation, we'll now have;

`C=\pi d`

Let's insert d = 2 1/2 = 5/2 and pi = 3.142 into the above equation and solve for C;

`\begin{gathered} C=\pi d \\ =3.142\ast(5)/(2) \\ =(15.71)/(2) \\ =7.855 \\ \therefore C=7.9inches\text{ (to the nearest tenth of an inch)} \end{gathered}`

Therefore, the circumference is 7.9inches (to the nearest tenth of an inch)