Anthony chen's father is going to put a tile border around
this square fish pond. the pond is 1 yard on each side. the
tiles are squares that are 1 foot on each side. the tiles fit
in the grey border around the pond. how many tiles will mr chen need to make the border ?

12

Step-by-step explanation:

One yard is three feet. So three times four is 12 because it makes four yards in total with each side being a yard.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .