Here are the diameters of four coins: penny nickel dime quarter
1.9 cm 2.1 cm 1.8 cm 2.4 cm

1.A coin rolls a distance of about 60 cm in 8 rotations. Which coin is it?

2.A coin makes about 7 rotations and rolls a distance of 42 cm. Which coin is it?

In parallelogram abcd the ratio of ab to bcis 5: 3. if the perimeter of abcd is 32 find ab

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field