00:01
Okay, so we're modeling a scenario for the three angles of a triangle.
00:04
The three angles add up to 180 degrees.
00:07
The sum of the measures of the second and third angles is four times the measure the first.
00:13
And the third angle here is 24 more than the second.
00:17
So that's my model for each of these scenarios.
00:20
To help me solve this, i'm recognizing that if i take y and z and y, and z, i can kind of replace 4x for that y plus z.
00:28
That means x plus 4x equals 180.
00:32
Put these together, i got 5x equals to 180, and then i divide by 5.
00:37
So 180 divided by 5, it's going to give me 36.
00:41
Okay? so i've got my first angle is 36 degrees.
00:45
That means if i look down here, y and z add up to four times that.
00:51
So i could say that y plus z equals four times 36...