ada yg bisa bantu jawab no.29 & 30?

(29)
L1 = trapesium = (a+b) x t x ½
a + b = 6 + 14
t = m² - n² -->> n = (14 - 6) : 2 = 8 : 2 = 4 cm
m = 5 cm
t² = 5² - 4²
t² = 25 - 16
t² = 9
t = 3 cm
L1 = (a + b) x t x ½
= (6 + 14) x 3 x½
= 20 x 3 x ½
= 10 x 3
= 30 cm²
L2= persegi panjang = p x l
p = 6 cm
l = 4 cm
L2 = p x l
= 6 x 4
= 24 cm²
L3= segitiga = a x t x ½
a = 6 cm
t = 11 - (4 + 3)
= 4 cm
L3 = a x t x ½
= 6 x 4 x ½
= 6 x 2
= 12 cm²
L.total = L1 + L2 + L3
= 30 + 24 + 12
= 66 cm²

(30)
K = (16 . 4) + (8 . 6)
= 48 + 64
= 112 cm