tolong jawab sama caranya ,,,bantuin bsk di kumpulin

34. Lp = 2(pl + pt +lt)
= 2(25 cm x 20 cm + 25 cm x 15 cm + 20 cm x 15 cm)
= 2 (500 cm²+ 375 cm² + 300 cm²)
= 2 x 1375 cm² = 2350 cm²
35. dr = 7√3 cm
s = 7√3 cm : √3
= 7 cm
Lp = 6xLa
= 6x (7 cm)²
= 6x49 cm²
= 294 cm²
36. s = 13 cm
ts = s:2√3
= 13 cm : 2√3
= 6,5√3 cm
Lp = Ls+La
Ls = axt : 2 x 3
= 13 cm x 6,5√3 cm : 2 x 3
= 42,25√3 cm² x 3
= 126,75 cm²
La = axt : 2
= 13 cm x 6,5√3 cm : 2
= 84,5√3 cm² : 2
= 42,25 cm²
Lp = Ls + La
= 126,75 cm² + 42,25 cm²
= 169√3 cm²