Which of these correctly defines a ray? a part of a line with exactly two end points
a straight path that extends endlessly in both directions
a circular path such that every point on the path is equidistant from its center
a part of a line that begins at a particular point and extends endlessly in one direction

A ray is part of a line that begins at a particular point and extends endlessly in one direction

A ray can be defined as a straight line passing through a point. A ray is denoted by;

Hence we can conclude that a ray is part of a line that begins at a particular point and extends endlessly in one direction

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the last option

Step-by-step explanation:

it is a ray

The length of the sides are 64 cm, 96 cm and 120 cm.

Step-by-step explanation:

Perimeter of a triangle:

The perimeter of a triangle is the sum of it's sides.

A triangle has a perimeter of 280 cm, and its side lengths are a, b and c respectively.

This means that:

a:b= 2:3

This means that:

b:c=4:5

This means that:

At the original equation:

We replace b and c in function of a. So

Multiplying everything by 8

Sides b and c:

Since we have a, we can find sides b and c:

The length of the sides are 64 cm, 96 cm and 120 cm.