00:02
So we have this triangle, and it says that one side is zero longer than the other side.
00:07
That means that they're the same length.
00:08
And then this third side is going to be eight longer than the second side, which means it's x plus eight.
00:14
And now we know that the perimeter is equal to 50.
00:17
So the perimeter, as we know, is all the sides added together.
00:21
So we're going to take all these add them together, set it equal to 50.
00:24
And then we're going to solve for x on the length of each side.
00:28
All right, so we have that x plus 8 plus x plus x equals 50.
00:35
Oh, did i say 8? i meant to write x, excuse me, equals 50.
00:40
All right, so we can combine like terms.
00:41
We have 1, 2, 3xs.
00:42
So we're going to say 3x, and then we still have an 8 plus 8 equals 50.
00:49
Now we can get x by itself by subtracting 8 from both sides, subtracting 8.
00:54
And now i have that 3x equals 42...