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=√256+√144
=√400
=20
AG=√20²+√15²
=√400+√225
=√625
=25
PR=√12,5²-√10²
=√156,25-√100
=√56,25
= 7,5
rumus luas
1/2 x (a+b) x t
=1/2 x (7,5+15) x 10
=1/2 x 22,5 x 10
=112,5
LOL bingung nulis akar
Alhamdulillah jawabannya benar ~_^