maxstill109
maxstill109 maxstill109
  • 22-04-2021
  • Mathematics
contestada

i need help with these questions

i need help with these questions class=
i need help with these questions class=
i need help with these questions class=
i need help with these questions class=
i need help with these questions class=

Respuesta :

natacorn08
natacorn08 natacorn08
  • 22-04-2021

Answer:

1.) 2.5cm

2.) 1 3/4

3.) 1.6

4.) 4/5

5.) 18.84

Step-by-step explanation:

So the radius is half of the diameter, so the first one would be:

5 ÷ 2 = 2.5

We do the same thing for the next one:

3 1/2 ÷ 2 = 1 3/4

Now we have to go backwards because we have the radius and we're trying to find the diameter:

0.8 x 2 = 1.6

And the next one:

3/5 x 2 = 4/5

Now to find the circumference, we multiply the diameter by pi (3.14)

6 x 3.14 = 18.84

let me know if any of these are wrong

hope this helps:)

Answer Link

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