Question

ASAP! Please do 1-5 and show work if possible!

Answer 1

(1) The radius of a circle is 1.5 m.

(2) The diameter of a circle is 28 ft.

(3) The radius of a circle is 10 in.

(4) The circumference of circle is 47.14 m.

(5) The circumference of circle is 44 yd.

Step-by-step explanation :

Part 1:

Given: d = 3 m

Now we have to determine the radius of circle.

As we know that:

Radius of a circle =
`(Diameter)/(2)`

So,

Radius of a circle =
`(3m)/(2)=1.5m`

The radius of a circle is 1.5 m.

Part 2:

Given: r = 14 ft

Now we have to determine the diameter of circle.

As we know that:

Radius of a circle =
`(Diameter)/(2)`

So,

Diameter of a circle =
`Radius* 2`

Diameter of a circle =
`14ft* 2=28ft`

The diameter of a circle is 28 ft.

Part 3:

Given: d = 20 in

Now we have to determine the radius of circle.

As we know that:

Radius of a circle =
`(Diameter)/(2)`

So,

Radius of a circle =
`(20in)/(2)=10in`

The radius of a circle is 10 in.

Part 4:

Given: d = 15 m

Now we have to determine the circumference of circle.

Formula used:

`C=\pi d`

where,

C = circumference

d = diameter

So,

`C=(22)/(7)* 15m`

`C=47.14m`

The circumference of circle is 47.14 m.

Part 5:

Given: r = 7 yd

Now we have to determine the circumference of circle.

Formula used:

`C=\pi d`

or we can write,

`C=\pi (2* r)`

where,

C = circumference

d = diameter

r = radius

So,

`C=(22)/(7)* (2* 7yd)`

`C=44yd`

The circumference of circle is 44 yd.