1. Definition of Parallelogram
2. Angle 2 plus Angle 3 is 180=Def of Supple
3.Angle Congruence Postulate
4. Angle 1 and Angle 3 equal to 180
2.5 (2 hours and 30 mins) hours. Distance (6.8) divided by time (2.72). 6.8/2.72= 2.5
<u>answer:</u> 
<u>work:</u>
____________
hope this helps! ❤ from peachimin
Answer:
The distance of the boat from B is approximately 9.4 miles
Step-by-step explanation:
The location of light house B from A = 9 miles west
The distance of the boat from A = 4 miles
The bearing of the boat from A = NE65
We have;
4/(sin25) = 9/sin(B)
sin B = 9*sin(25)/4
B ≈ 71.969
a² = 4² + 9² - 2 × 4 × 9 × cos(180 - 25 - 71.969) ≈ 88.264
The distance of the boat from B, a ≈ √88.264 ≈ 9.4
To make line AB perpendicular to line CD move point B until the angle between the lines, angle BEC measures 90°.
