A road bike has a wheel diameter of 622 mm. What is the circumference of the wheel? Use 3.14 for pi

Circumference ≅ 195 mm

Step-by-step explanation:

The circumference of a circle is equal to:

Since we can replace that in the circumference equation giving us:

We know Diameter = 622 mm and pi = 3.14 so:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it