Question

The ferries wheel has a circumference of 62.8 ft. What id its diameter?

Answer 1

Circumference of a circle = `pi d`

`:. "Ferries wheel " color(green)("Diameter " d = 20 " ft"`

Explanation:

Since circumference of circle is 22/7d(diameter)you have to make equation like 22/7d=62.8ft and then solve it. One more thing, here in this formula 22/7 is termed as 'pi' and even instead of putting 22/7 to make it more easy you put 3.14 which is the decimal form of 'pi'or' 22/7'.

Therefore `3.14*d = 62.8ft`

`d = (62.8 /3.14) " ft"`

`=>cancel(6280)^color(red)(20) / cancel(314)^color(red)(1)=20 " ft".`