No 33 SM 34 pakai cara tolong kk

33. AC² = 28² + 21²

AC = 35

AD² = 35² + 12²

= 37cm

34. Kel Segitiga = 16 x 3 = 48

Sisi persegi = 48 : 4 = 12

Luas persegi = 12 x 12 = 144cm²