Concave quadrilateral ABCD is symmetric about the line AC, the measures of angle DAB and ABC are 84 and 32 respectively. The dashed line segments bisect angles ABC and ADC. What is the measure of the acute angle at which the two dashed lines intersect?

m∠a is 90°

m∠b is 40°

b

a.) list the factors of 40.

1/2/4/5/8/10/20/40

b.) list the factors of 40 that represent the number of cans that could be on each shelf.

5

c.) how many different arrangements of cans are possible?

just one because if you put more on one shelf you will go way over 40 and the cabinet will probably break.

d.) what are the possible arrangements of the cans?

put 5 cans on each self to reach 40 cans in total.

e.) which arrangement uses all the shelves?

5 because you can put 5 cans on each shelf, and since there are 8 shelfs you are equally going to get 40 cans.

its kinda hard to answer this when we dont have all the information that we need.