Hurry will mark  brainiest answer.  which is the best strategy to use to solve this problem? sophie wants to make a large rectangular sign that has an area of 60 square feet. she wants to put a border around the sign, but she wants to use as little border material as possible. what are the dimensions sophie should use for this sign?     a. write a number sentence. use a number sentence to calculate the area of a rectangle. use guess and check to find two numbers that when multiplied will give a product of 60.    b. make a list  , create a list of all possible whole-number combinations of length and width that would equal an area of 60 square feet. then start calculating the perimeter of each rectangle. look for a pattern to decrease the number of calculations you have to make.     c. use objects to model the problem. arrange 60 square tiles in different patterns that create a rectangular shape. count the number of tiles on the perimeter of each of the shapes. 

Answer – Option B

The best strategy is to list all the possible whole-number combinations of length and width that would give an area of 60 square feet (using the factors of 60). Having made the list, calculate the perimeter of each rectangle, using a pattern that would decrease the number of calculations you have to make. The combination with the least perimeter is the answer.

SHOWING

Possible Combinations

1 and 60 [Perimeter will be 122]

2 and 30 [Perimeter will 64]

3 and 20 [Perimeter will be 46]

4 and 15 [Perimeter will be 38]

5 and 12 [Perimeter will be 34]

6 and 10 [Perimeter will be 32]

The best dimensions with whole number is 6 feet by 10 feet.

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl