Answer:
We know that vertical angles are congruent and corresponding angles are congruent if they are formed by parallel lines.
Step-by-step explanation:
Therefore, We can use this information to prove alternate interior angles are also congruent if they are formed by parallel lines since the lines are parallel, then < 1 and < 5 are congruent, < 2 and < 6 are vertical angles We also know that all vertical angles are congruent, so that means < 1 congruent to < 5 because they are corresponding angles, and < 2 congruent to < 6 because they are vertical angles, that means < 1 must be congruent too.
Answer:
First Selection
Fifth Selection
Sixth Selection
Step-by-step explanation:
Answer:

Step-by-step explanation:
Let's call "v" the speed of the commercial airplane and call "t" at the travel time of the commercial plane
The distance in kilometers of the trip is: 1730 km
Then we know that:

Then for the jet we have that the speed is:

The flight time for the jet is:

Therefore:

Substituting the first equation in the second we have to:



Now solve for t





he should buy 11 sets of forks, hope this helped! <3
Answer:
50°
I hope it will be useful.
Step-by-step explanation:
Since the triangle is isosceles(see the sides),
opposite angles to the equal sides are equal.
(Property of isosceles triangles)
v.i.z., 2x=100°