X would be 39
Add the two angles to get 90+51 =141
Then subtract 180 from 141 to get 39
Speed = Distance / Time, therefore, Speed = 827km / 10.55 hrs. I got 10.55 hours because I converted the 33 minutes into hours and got 0.55 and added it to the 10 hours which is given. so the answer would be approx. 78.39 km / h. I rounded it to the nearest 2 decimal places.
For the first triangle x=70. 180-40 is 140. Divided that by 2 and you’d get 70.
The second triangle x=90. 180-45 is 135. 135-45 (the angle congruent to the other 45 degree angle) is 90.
The third triangle x=65. 180-50 is 130. 130 divided by two is 65.
Check all answers by adding all the angles of the triangle and make sure they equal 180
Answer:
x=16/3
Step-by-step explanation:
