Page 19 - Key Stage 3 Geometry

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2. Place a mark at the 50 angle by the protractor.
3. Remove the protractor and draw a line from the
centre of the line to the mark. There you have

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drawn a 50 angle.

Exercise 2-2

Measuring an angle with your protractor. Work

through the following.

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1. With your 60 set square, lay it flat on a sheet of
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A4 paper and draw an out-line around the 60
angle (see diagram on the next page).

2. Remove the setsquare and mark the corner of
the angle with a dot.

3. Place your protractor with the base line on the
line your have drawn and the cross-hairs on the

dot.

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