1. The measure of angle 4 is equal to 90 degrees.
2. The sum of the angles in every triangle is equal to 180 degrees.
3. The sum of angle 4 and 53 degree angle is 143.
4. The measure of angle one is 37 degrees. For this one you add up angle 4, or 90 degrees and the 53 degree angle. 90+53=143, next you subtract 143 from 180 to get the last angle.
5. The measure of angle 2 is equal to 120 degrees. I found this because if you look at the triangle, angle 3 and the 30 degree angle below it look the same, so you add those together to get 60, then you subtract 60 from the sum of all the angle or 180. 180-6=120
6. Angle 3 is equal to 30 degrees. This is because as i said above, angle 3 is the same as the 30 degree angle shown below, also if you add angle two and the 30 degree angle and subtract that sum from 180, it is equal to 30.
Big question lol. Hope this helps.
