The distance around a bicycle wheel is 21.98 feet. what is its diameter

The diameter of bicycle wheel is:

7 ft.

Step-by-step explanation:

The distance around a bicycle wheel is 21.98 feet.

this implies that circumference of the bicycle wheel is 21.98 feet

we know that the circumference of a circle is given by the formula:

C = 2πr

where 'r' is the radius of the circle.

⇒ 21.98=2×3.14×r

⇒ r=3.5 ft.

Now we know that diameter of circle is twice the radius of the circle.

⇒ d=2r

⇒ d=2×3.5

⇒ d=7 ft.

Hence, the diameter of bicycle wheel is:

7 ft.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

eve and marks ratios are equivalent

step-by-step explanation: