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Bls. 24<br />
18<br />
Margar lausnir<br />
19<br />
20<br />
Átthyrningur<br />
Bls. 25<br />
21<br />
22<br />
23 a<br />
b<br />
c<br />
d<br />
24<br />
Margar lausnir<br />
Margar lausnir<br />
Rétt horn<br />
90 gráður<br />
360 gráður<br />
45 gráðu horn<br />
<strong>Geisli</strong> hringsins er 3 cm<br />
<strong>Geisli</strong> <strong>1B</strong> – Lausnir – © Námsgagnastofnun 2011 – 09073<br />
..... Flutningar og form<br />
20