00:01
So we're told that we have triangle abc and that angle abc is 45 degrees.
00:05
That means that this angle right here is 45 degrees.
00:08
We're then told that we have a line segment am that is perpendicular to bc.
00:14
So am would be perpendicular to side b .c.
00:18
It makes a right angle right there.
00:20
And in doing that, they also tell us that that length is 4 centimeters and that the length of b .c.
00:27
Is 7 centimeters.
00:28
So four centimeters here, seven centimeters is this distance right here.
00:33
And we're asked to find the length of side a, c.
00:37
That's what we want to figure out.
00:40
So looking at this, if i know that i created a right angle because a, m, that's m right there, is perpendicular, i have a 45 degree angle in angle b...
