1. BC=√AB²+AC²
BC=√12² +16²
BC=√144 + 256
BC=√400
BC= 20
2. AC=√BC²- AB²
AC=√17²-8²
AC=√289 - 64
AC= √225
AC= 15
3. 15²=5²+8²
225=25+64
225=89 (segitiga lancip)
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1. BC=√AB²+AC²
BC=√12² +16²
BC=√144 + 256
BC=√400
BC= 20
2. AC=√BC²- AB²
AC=√17²-8²
AC=√289 - 64
AC= √225
AC= 15
3. 15²=5²+8²
225=25+64
225=89 (segitiga lancip)