Question

Holding the set-square fixed in the above
position, draw a line segment XY of any length
along the edge of the other arm of the right
angle​

Answer 1

Answer:

When two lines point in different directions, we say they are at an angle to each other. If the directions are almost the same, we say the angle between them is small. If the directions are very different, we say the angle between them is big.

Words we use to describe angles:

Arms of the angle: the two lines that are at an angle to each other

The vertex: the point where the two arms meet

Vertices: plural of 'vertex'

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Symbols to describe angles:

Step-by-step explanation:

Arrowheads on the lines mean that the lines keep on going. The length of an angle's arms does not change the size of the angle. Whether the arms are long or short, the angle size stays the same.

There are two angles at a vertex so it is important to show which one we are talking about

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