Luas segitiga ABC adalah​

ac = 8√2 cm

sudut = 45°

panjang bc

sin a = bc/ac

sin 45° = bc/ac

√2/2 = bc/8√2

2 . bc = 8√2 . √2

2bc = 16

bc = 8 cm

panjang ab

cos a = ab/ac

cos 45° = ab/ac

√2/2 = ab/8√2

2 . ab = 8√2 . √2

2ab = 16

ab = 8 cm

Luas

= a x t : 2

= 8 x 8 : 2

= 32 cm²