00:01
In question 9, we are given that triangle, a, b, c is a right triangle.
00:06
Point d is a midpoint offside a, b, and point e is a midpoint offside a .c.
00:12
Also, we're given that the measure of angle a -d -e is 36 degrees.
00:17
So this flowchart has some missing statements and reasons to prove that the measure of angle e -c -b, this angle, is 54 degrees.
00:33
Okay, so let's find the statement and the reason that can be used to feel in the numbered blank spaces.
00:40
So the first statement here is that segment d -e joins the midpoints of segment a, b, and a -c.
00:50
That's already given.
00:52
Then from there, we move to the statement that d -e is parallel to b -c, and the reason for that is the mid -segment theorem.
01:06
Then we continue and see that the measure of, okay, so we move on with the flowchart and the flowchart takes us to angle ecb is congruent to angle aed.
01:25
So angle e, c, b, which is to be determined, is congruent to angle aed, aed...