I’m having a lot of trouble on this and could use because i was absent when we learned this? !

Answers given in explanation

Step-by-step explanation:

Answers for question 3

Our first given value is just Pi by itself

C=Pi*d

Since Pi was a ungiven value, we just use it normally: π

C = π * 4.5

= 4.5π

= 4.5πcm

cm since you are adding in the unit.

Next for radius of 6

C = π * 2r

= π * 12

= 12π

= 12πin

Also continuing the unit.

Next is Pi on a calculator, which I don’t have.

We are given 3.14 for a π value

d = 4.5 cm

C = π * d

= 3.14 * 4.5

= 14.13cm (Continuing unit as always)

————————

Given radius = 6

C = π * 2r

= 3.14 * 2(6)

= 37.68in.

Next given value for Pi = 22/7

C = π * d

= 22/7 * 4 1/2

= 14.1429cm

———

C = π * 2r

= 22/7 * 2(6)

= 37.7143in.

step-by-step explanation: