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Practical: draw clockwise and anticlockwise angles of these sizes:
a 45° b 72° c 105° d 156° e 215° f 307°.
Practical: choose four other pairs of clockwise and anticlockwise angles,
draw, label and check them.
Challenge
a 136° b qo 0 c 304° d 68° e 65° f 321°
g 52° h 150° 74°
Open: draw another nine-sided fish.
The internal angles of the new nine-sided fish will add up to about 1260°
(because all nine-sided polygons (nonagons) have internal angles which
total 1260°).
