a)NQ=NP-PQ=10-6,4=3,6cm→NQ=3,6cm
inΔMNP aplicam teorema inaltimii:MQ²=NQ×QP⇒MQ=√NQ×QP
MQ=√3,6×6,4=√23,04=4,8cm→MQ=4,8cm
inΔMNQ aplic Th.Pitagora⇒MN²=NQ²+MQ²⇒MN=√(3,6)²+(4,8)²=
=√12,96+23,04=√36=6cm→MN=6 cm
inΔQMP aplic Th. Pitagora:MP²=MQ²+QP²⇒MP=√(4,8)²+(6,4)²=
=√23,04+40,96=√64=8 cm→MP=8cm