00:01
Every triangle has six parts, three sides and three angles.
00:11
Let's see for this particular triangle, what we know and what we need to find out.
00:15
We are told that angle a equals 39 .70 degrees.
00:21
Angle c is 30 .35 degrees.
00:27
And side b is 39 .74 meters.
00:32
So i've been given three pieces of information.
00:37
I have three unknowns to find.
00:40
Let's start with our unknown angle, angle b.
00:43
Since the sum of the angles of every triangle is 180 degrees, my unknown angle is going to be 180 minus the two other angles that i know.
00:58
That gives me a value for b of 109 .95 degrees.
01:12
Now what about my unknown sides? well, i have a pair that i know.
01:17
I know side b and angle b...