Which two sets of angles are corresponding angles?

(angle q, angle r) and (angle p, angle s) are the sets of the corresponding angles.

Step-by-step explanation:

Two triangles have been given in the figure attached.

To identify the corresponding angles we will understand the which are the corresponding sides.

Side with length 2 in small triangle is half of the side with length 4 units.

Similarly, sides with length 3 in small triangle is half of the side of length 6 units

And side with length 2.5 in small triangle is half of the the side of 5 units length.

Therefore, corresponding sides are (2 units, 4 units), (2.5 units, 5 units) and (3 units, 6 units).

Now angles opposite to the corresponding sides will be corresponding.

(angle q, angle r) and (angle p, angle s) are the sets of the corresponding angles.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

it is c, trust i got your back lol

step-by-step explanation: