16) inΔabc dreptunghic cu m < a=90
folosim teorema lui pitagora si avem
ac²=bc²-ab²
ac=√24²-12²
ac=√576-144
ac=√432
ac=12√3
P=12√3+12+24
P=12√3+36
sinB=ca/bc =>sinB=12√3/24
sinB=√3/2 deci m<B=60 grade
sinC=ab/bc=>sinC=12/24
sinC=1/2 deci m<C=30 grade
17) inΔADb dreptunghic cu m<D=90 grade avem
AB=√Ad²+BD²
AB=√8²+4²
AB=√64+16
AB=√80
AB=4√5
