If δabc is congruent to δdef, which statement must be true?

a.
line bc is congruent to line de
b.
∠a is congruent to ∠d
c.
∠bac is congruent to ∠def
d.
line ab is congruent to line ef

step-by-step explanation:

what graph

step-by-step explanation:

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours