Question

Mattie and Matilda are at a bead class making bracelets. If Matties wrists bracelet has a circumference of 7 inches and Matilda needs an amr bracelet that is 2.5 times larger, what will be the radius of Matilda's bracelet?

Answer 1

The radius of Matilda's bracelet is 2.784 inches

Explanation:

Given,

The circumference of Matties bracelet is = 7 inches

The bracelet of Matilda is 2.5 times of Matties's bracelet

So, the circumference of Matilda's bracelet = 2.5 × 7 inches = 17.5 inches

To find the radius of Matilda's bracelet

Formula

The circumference of circle of radius(r) = 2πr inches

According to the problem,

2πr = 17.5

or, r =
`(17.5X7)/(22X2)`

= 2.784 inches (approx)