Question

Sam is building an enclosure with recycled cardboard for his collection of model cars. His design is as shown.


Sam needs a total length of 156 inches of cardboard for his project. What is the length of side BC in inches?


26

7

42

6

Answer 1

ANSWER CHECK---- I THINK IT IS 42

Answer 2

@phi

Answer 3

Correct. It is 42.

Answer 4

yes, if you multiple the lengths of the figure on the left by 6, you get the lengths of the figure on the right.

(we know because the bottom side 6 times 6 gives the bottom side of the other figure 36)

so we need to figure out the length of the right side of the smaller figure. it is 5+2 or 7
6*7= 42