30 points + brainliest for the correct answer!
question:
in the figure shown, line ab is parallel to line cd.
part a: what is the measure of angle x? show your work. (5 points)
part b: explain how you found the measure of angle x by identifying the angle relationships that you used along the transversal. (5 points)
my work:
x = 155 - 62 which leaves you with x being 53 (credits to those who me in my previous asked question)
that's all i could come up with which completes part a, if you know the answer to part b feel free to just answer part b! part a is not needed but i added it there for those who need to see it.

The angles of 115 degrees and (52+x) are the same, because they are alternate interior angles.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for