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Janne Venho
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Kulmanarvauspeli
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Janne Venho
Suoran kulmakerroin ja vakiotermi
Activity
Janne Venho
Kulmakerroin ja vakiotermi
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Janne Venho
Tasakylkinen kolmio
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Janne Venho
Kehä- ja keskuskulma
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Janne Venho
