Anewly made car will have a model number, a parts number, and a serial number. a model number is assigned by the manufacturer to identify each type of car. a parts number identifies one part of the smaller parts that make up the car. a serial number is unique to each car produced and identifies it.

which relation is a function?

(parts number, serial number)
(model number, parts number)
(serial number, model number)
(serial number, part number)

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solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.